Robin: Let's prove that we believe in marriage by working together to help Marshall hide something from his wife. First, we take position in the lobby.
Barney: Then, you cause a distraction.
Robin: Then you send in a trained dove to grab Lily's phone.
Barney: The dove drops the phone into your hand, you delete the text and toss it back on the counter.
Robin: Wait. It's absolutely insane... how foolproof this plan is.
Barney: Sometimes it's best to just go simple.