BktBallRef wroteStupidity. I guess you aren't suppose to talk to kids about hands out front or pushing in the low post either.
You say stupidity. I say enforcement. Either way, you do what you're taught.
I don't see a big deal about whistling a three-seconds violation, or any foul in the low post (providing I watch the play through). But again, I was taught that it's not a big deal. IAABO is my universe (travel and rec league games notwithstanding), so like anywhere else, you adhere to the celestial laws.
I talk a fair amount officiating soccer ("hands DOWN!"... "keeper has it" .... "PLAY ON!!!"), but it helps when you don't have to keep the whistle in your mouth.
RichMSN wroteI've had plenty of people yell ["three seconds"], usually when the ball is bouncing on the rim after a shot attempt.
Now, that's something that you'll find in any universe!