Here's a play I had in a time limit tournament game, me being PU:
R1 is on 2nd, ball hit to deep SS with R1 heading to 3rd, SS throws to 3rd, but the ball gets away and goes toward the DBL, with both 3B and the C going after it. As R1 makes the turn to go home, the P, who was inbetween the circle and the 3B line decides to cover home - by running directly down the baseline about 7-8 ft in front of R1. As I had gone over to check on the errant throw, and was now going to HP, all
I had to see was the position of both R1 and the P to know I had possible OBS. I stuck my arm out, and eventually the ball, runner and fielder all get there about the same time, I kill the ball, and declare OBS, and give R1 home.
Now, I will admit I never saw R1 slow down, but in MY book, I didn't
have to - in MY book, when that fielder runs DIRECTLY in front the runner that close, its good enough for me. Our local school clinician always teaches OBS by the 'tricycle sitting in the driveway' approach. In this case, your kid was riding that tricycle directly in front of you, and I don't have to SEE you slow down, to know you are GOING to slow down, or at the very least, be inconvienenced - which is still OBS, and you still will get that next base.
And oh yeah, time ran out on that game with the score 1-1
