Playing marginal hands sometimes

[BrianSwa]

This question goes out to everyone because I think I just cracked a awsome hand with this. Im sitting in late position and I get 9d10d and say WTF lets try it flop comes down.
9
j
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so ive got middle pair and this guy bets like right away into me and I call dont ask me why I just do.

turn is

Q


I call again not knowing why im still in this freaking hand and I river the king.

so my question is does this ever happen to you when you call with a marginal hand just for the heck of it or is this something I seriously need to stop?