I have often derided the bad handshake with friends, and not once has anyone said it didn’t totally bum them out. It is universally deplored. No one likes a floppy finger shimmy and no one believes the more pain, the better.
The most common of these two evils has to be the classic wet fish. Those people who just waggle their wrist in your general direction. It’s like shaking hands with a tea towel.