This morning, my daughter 3years old was sitting with me, I said “oh shoot” then she copied me and said “oh shoot” lol, luckily I didn’t say the eff word, I think the thing about kids are they copied you almost everything you did, they will copied it at one time or another and if you done it too often it will embed in their brain and will keep on repeating it. So be careful what you’re doing in front of kids, including talking and act.