When one of my kindergarteners was clearly procrastinating doing his work by telling me "math gives me a headache", I suggested that maybe If he focused on his work he would forget about his headache. His "really?!" could have meant one of two things:
A. Mrs Y - you are so clever. Thanks for the advice.
B. Mrs Y - I may be 5, but I wasn't born yesterday.
Pretty sure it was B.