[DING-DONG YO]

Gutshot with no other way to improve (no overcards, flush draws, etc.) usually will get folded on the flop unless the pot has been capped 5 ways PF or something and now it's HU or the villain is a complete aggro monkey that will cap every street and pay off with implied odds for me to chase.

And if either of these conditions are available for me to chase a gutshot on the flop, I'm usually folding the turn unless the pot is just gigantic.