I always feel compelled to call here.......

[RedBaron__]

It would be nice to know how many hands OP had observed before coming to the conclusion that he pushes every 4th hand. To me it is in practice rarther difficult to tell this exactly and that's one reason which makes me favor folding here.

Another reason is that if I call and loose I some times start tilting and try to get even with this guy. This is of course a weakness in my game.

In general I feel I'm not giving much up here by folding.