I like to entertain myself and one thing that has made me laugh is saying things like “sorry i am so effing late, I couldn’t find where the eff my keys were.” The nostalgia factor is so special and it just sounds a little silly. For extra laughs sometimes, I like to precede or follow with the disclaimer that “I am trying to curse less” because "curse" is a funny word too and the statement is blatently not true.