Hanging on the Rim

[griblets]

In two recent games, I've had a partner call a T for hanging on the rim on a dunk attempt, once from L, when I passed on it from T. I'm not necessarily disagreeing with either decision (even though I wouldn't touch that call from L), but I'd like to hear from some of you on what you look for when judging whether or not to call a T for hanging on the rim on a dunk.

Thanks in advance for your feedback!