Me too!! And I as well don't tell the parents that I gave my 'extra' or else they will forget again and know you'll have a backup going forward.
It's a total lack of respect not only for you but for the child! Do they realize what they're putting their child through the whole day?? I've sent a mom back home to get the soother....a quick "Oh no she'll have such a hard day! You know...I'll wait for you to come back with it before we leave for playgroup (stare)".
Also the poor child with no socks. Although it isn't a big deal.....it is....it's cold out! Who doens't make sure their child is warm and ready to go out?
Annoying