[BillyMac]

10.1.5 SITUATION D: Immediately following a goal by A1, A3 slaps the ball
away so that Team B is unable to make a quick throw-in. RULING: The official
shall sound his/her whistle and go to the table to have the scorer record a team
warning for delay. The warning shall then be reported to the head coach of Team A.
Any subsequent delay by Team A shall result in a team technical foul charged
to Team A. (4-47-3)

2000-01 NFHS Interpretations
SITUATION 15: Immediately following a goal in the first quarter by Al, A3 slaps the ball away so that Team B is unable to make a quick throw-in. In the second quarter, A2 reaches through the inbounds side of the throw-in boundary plane. RULING: The official shall sound his/her whistle and go to the table to have the scorer record a team warning for the specific delay after it has occurred. The specific warning is then reported to the head coach of Team A. Any subsequent delay for interfering with the ball following a basket or throw-in plane violation by Team A shall result in a technical foul charged to Team A. COMMENT: The three warning situations listed in Rule 4-46 are treated separately. (4-46; 9-2-11; lO-1-5c,d)

2000-01 NFHS Interpretations
SITUATION 13: A1 is at the free-throw line to shoot a free throw. The lead official bounces the ball to A1, and B1, who is in one of the free-throw lane spaces, a) reaches out and intercepts the bounce pass without breaking the vertical plane of the free-throw lane with either foot and then requests a time-out; or b) breaks the vertical plane of the free-throw lane and intercepts the bounce pass and then requests a time-out. RULING: This is NOT a warning for delay situation, as outlined by Rule 4-46. In both situations, a technical foul shall be called for B1 delaying the game by preventing the ball from being put in play. (10-3-7a)

9.2.10 SITUATION A: A1 is out of bounds for a throw-in. B1 reaches through the boundary plane and knocks the ball out of A1’s hands. Team B has not been warned previously for a throw-in plane infraction. RULING: B1 is charged with a technical foul and it also results in the official having a team warning recorded and reported to the head coach. COMMENT: In situations with the clock running and five or less seconds left in the game, a throw-in plane violation or interfering with the ball following a goal should be ignored if its only purpose is to stop the clock. However, if the tactic in any way interferes with the thrower’s efforts to make a throw-in, a technical foul for delay shall be called even though no previous warning had been issued. In this situation, if the official stopped the clock and issued a team warning, it would allow the team to benefit from the tactic. (4-47-1; 10-1-5b, c; 10-3-10)

10.4.10 SITUATION A: After a field goal, A1 has the ball out of bounds for a throw-in. Thrower A1 holds the ball: (a) B2 crosses the boundary line and fouls A1; or (b) B2 reaches through the out-of-bounds plane and touches the ball while in the hands of A1. RULING: It is an intentional personal foul in (a), and a technical foul in (b). In (a), such a contact foul with the thrower during a throw-in shall be considered intentional, or if it is violent, it should be ruled flagrant. COMMENT: Either act is a foul and it should be ruled as such whenever it occurs during a game without regard to time or score or whether the team had or had not been warned for a delay-of-game situation. If the player making the throw-in (A1) reaches through the out-of-bounds plane into the court and B1 then slaps the ball from the hand of A1, no violation has occurred. B1 has merely slapped a live ball from the hands of A1. (4-19-3, 4; 9-2-10 Penalty 3, 4)

10.4.10 SITUATION B: After a field goal, the score is A-55, B-54. A1 has the ball out of bounds for a throw-in with two seconds remaining in the game. A1 throws the ball toward A2 who also is out of bounds along the end line. B2 reaches across the end line and grabs or slaps the ball while it is in flight. Time expires close to the moment the official indicates the infraction. RULING: A technical foul is charged against B2. The remaining time or whether Team B had been previously warned for a delay-of-game situation is not a factor. No free throws are awarded as the winner of the game has been determined. (9-2-10 Penalty 3, 4)

If it's egregious enough (or not if it's already dictated by rule of interpretation), sometimes we call the foul or the violation, even if there's no delay warning already given, and even if there's less than five seconds left.