Handshakes That are Too Strong (and Painful)

Dear Dervish, please help me articulate my displeasure with well-meaning folk who feel the need to squeeze when shaking my hand until I almost cry out in pain.

A strong handshake is good, but good lord
When we met and we shook I was floored
That is not a good move
Whatchu trying to prove?
Others' signals and pain you've ignored