Now Order of the stick played with this a bit MANY years ago. They had someone cast it (maybe twice) first suggested “Kill your friends and bring me there magic items” and the character refused that was not in his character… so they reevaluated “Kill your friends and keep there magic items” and then the character said “OKAY”
Now that is played for laughs, but I started to think back to times I had seen suggestion used in games… to get discounts shopping (aka stealing) to get past guards (mostly good I mean better then killing them) an a few jokes here and there, but over all in the 30 (oh god is it really 30?!?) years I have been gaming we haven’t used it a lot.
However 1 time sticks out (at least one time that didn’t involve the above bad player) where my friend Becky used suggestion from her sorcerer (3.5) a few people at a party that the king was a tyrant. The reason for this had a goodish reason, the king was refusing to help with the main plot but the princess believed us, so we started to over throw the entire country to insert our puppet dictator…for the good of the world (yeah, that sounds bad I know..,)
SO I started to think about those party guests, and those guards, and even those shop keepers… and that yes it is just a game and they are not real, BUT what we are doing is oh so wrong to them. The R word that is not grandma friendly and could often be used to describe the above problem player’s actions is not something I would through around casually… but add the word mind in front of it and it gets pretty on the nose.