Old folks fight here too

I went to pay my rent last night for the first time. The landlord is an elderly couple who live only across the road in a massive old house. The woman clearly runs the show because when I went over to pay it the other day the man was there and wouldn't take any money off me because he wasn't certain how much the rent even was. This time though he had clearly been briefed by his wife and had me wait outside while he got my receipt. The woman rocked up while I was waiting and invited me to stand inside the doorway and proceeded on to see what the hubby was up to. They then had a massive elderly couple argument that was just hilarious. She comes in;
"What are you doing there?"
Him: "Getting the thing."
Her: "what thing?"
Him: "You know, the THING"
Her: "Give it to me."
Him: "The receipt! I am writing the receipt."
Her: "It's for April not May."
Him: "Hmm..."
Her: "APRIL!!" (voices getting quite loud clearly they are both irritated)
Him: "I wrote April. There, see, APRIL."
Her: "Where's the contract."
Him: "What? What contract?"
Her: "The rental agreement... the lease papers."
Him: "Oh, that. I gave it to her the other day."
Her: "What? Why?"
Him: "The guy from the board of education told me to."
She groans and there are sounds like a piece of paper is being tussled over before she re-appears in the end of the hallway and is all smiles, "Here you go, have good night!" while I try to contain my mirth at overhearing their quarrel. I hope they have an argument every time I pay the rent, that would just make parting with the money worthwhile!