I bet that Sirius Black always crawls into bed with James Potter when he has nightmares, but one day he had a nightmare and tried to get into bed with James only to find Lily Evans there because she had a nightmare. "What do you mean you have to take care of Lily? Wormtail, do you hear this? This is outrageous. Moony, fix this."
*Remus and Tonks losing Teddy in a crowded place*
"What does your son look like?"