"You know you should have worn bug spray," Marshall told Mary when he caught her scratching a mosquito bite, again.
"Shut up Marshall and I did," Mary lied. She scratched the red welt furiously.
"Did you know that mosquitoes prefer to bite people who have eaten bananas recently," Marshall told Mary with a smile.
"Thanks for that useless information Marshall. We have places to go, things to do, and witnesses to settle," Mary said getting up from her desk.
Later that night Mary went straight to her kitchen and threw out the bunch of bananas. "Why is Marshall always right?"