People talk about Gohan, but Krillin had the biggest character assassination in the Android Arc
>Before this he was always willing and ready to jump in and help out his friends whenever needed
>NEVER cowered or backed down from an enemy no matter how strong they are
>Even if he didn't stand a chance, he still went after them

To suddenly
>A-AAAHHHH, S-SORRY GUYS I DIDN'T JUMP IN AND HELP YOU FIGHT THE ANDROIDS I WAS SCARED...

You can't even say "oh well he knows he can't come back if he dies so he's more cautious" he already thought he couldn't come back before they went to Namek and was never a bitch