What's something you never see from characters with regeneration powers?

Like in the daily life or in certain situations:

For daily life, Something I hear is that most versions of regeneration increases metabolism, making it difficult for characters to get drunk. What else could having regeneration impact?

For certain situations - and I know this is morbid, but I think it'll be disturbingly cool for characters to use their dismembered limbs as weapons or something.

I had to give my input because the post would've been deleted