Time Retardation

When you ask someone if they've done something which you know they haven't and then as they're answering they do the thing you're asking them to do.

Dad: "Molly, is your seat belt on?"

Teenage Daughter: "uh, yes. . ." she says as she puts Iphone down and tries to sneak it on without Dad knowing.

Dad: "No its not."
Teenage Daughter: "Yes it IS!"
Dad: "It wasn't when I asked."
Teenage Daughter: "Yes it WAS!!!!"
Dad: "Oh, sweet child, you are suffering from a case of TIME RETARDATION."
Teenage Daughter: eye roll, back to Iphone to snap-chat about how retarded her dad is.