ok so he's only 13 months and doesn't really understand and probably isn't going to pick up a word and start saying it after hearing it once but it really annoyed me. imo they are in my garden they should have respect and not swear. if they want to swear elsewhere fine but not when they are on a job and there are children about. in fact imo whether there are children about or not it is a bit unprofessional to be saying to your work mate "of f*ck off will you"