[Woolygimp]

When someone says call, they are saying "I will match your bet."

So the person still in the motion of betting still has the option of finishing his bet and setting it's size. If someone makes this mistake, and it's an honest mistake then they are better off playing go-fish.

It's my experience that it's almost never a mistake, and is commonly an angleshoot.

Rules should by definition not be open to interpretation, nor should they be ambiguous.

If you say, we'll the better should only be able to bet so much...
Well then that gives the advantage to the guy breaking the rules, he can do this anytime someone is about to overbet the pot ....i.e. bet 3k into a 1.8k pot.

I act out of turn commonly, but it's almost always pf. Not when my opponent that I've been betting back in fourth with on 3 previous streets goes across the line with a handful of chips.