Lucian is in that mimic phase these days. Sometimes it's cute. Sometimes it's funny. Sometimes it's just not funny or cute, it's scary.
It helps that there are times like when he follows you into the bathroom (like all the time) to mimic what you're doing. Like pulling toilette paper off the roll. And repeating the process. Till you tell him to stop. To which command he refuses to obey and then you get mad and then he wipes himself over his diaper and then you laugh.
I swear one of the hardest things about parenting is keeping a straight face.