the "bump" at first base

[Tru_in_Blu]

A question came up at a clinic that I thought I'd post here to get some thoughts.

We've all seen the lead-footed F3 who never seems to be able to get out of the way of the BR. And we most often call OBS when we see it.

After many bumps around 1B, batters are becoming frustrated with F3.

On a clean base hit to left field, BR is taking the path around 1B to touch the inside of the bag and make a move to 2B. While rounding, she's OBS by F3. But this time the BR pushes F3 out of the way. F3 may end up: a) taking a couple of steps to recover her balance; or b) a$$ over teakettle and on the ground.

So we have OBS to start. Do we have anything else?