I don't know how many times I've been cleaning up a mess and a guest just walks right through it and slips... I also have the less slipping for player option on and it still slips all the time if I don't keep as far away from it as the mop will allow. Guests should somehow know to avoid the player when they are actively using something like a broom, sledge hammer, hammer, etc. I don't know how many times I've been cleaning, repairing, building or what not and they just go right in and get bonked on the head or slip on the water/vomit you're cleaning up...etc.
It's hard enough to play this normally, but once you get up in levels so to speak, it gets ridiculous how many are just slipping everywhere, even in what you are cleaning up despite, trying to clean the place. Then to have them actively walk into your tool as you are using it to get rid of whatever? It's annoying to the n'th degree and makes it impossible to keep a higher review at the end of each day.