Poking the Bear

from the Urban Dictionary:

To act in such a way that has a good, but not definite chance, of causing trouble. (You can poke a bear once and maybe get away with it, but if you keep poking him, he's going to get really angry.) To stir things up.

I figure all I have to do is keep hacking that big guy when we play ball with him and eventually, he'll stop driving the lane.

Dude, I think you're poking the bear on that one... you better watch out.