A guy's marriage is on the rocks. Really close to being finished. He's always out drinking with his friends and coming home drunk. His wife warns him, "if you go out drinking with your friends one more time, we're finished for good!"
The guy promises his wife he'll clean up his act. He really cares about her and is ready to turn over a new leaf.
A few sober and responsible weeks later, he's finishing up his day at the office when his good drinking buddy leans into his cubicle and says:
"Guy, let's go get a drink. It's been a rough week, and we deserve it. C'mon Guy, you're being a nag!" At first he declines, but thinking about how tough the past week has been, and how great he's been doing with sobriety, he eventually agrees to a single drink.
These types of things being what they are, and going like they do, one drink turns into eight and sober turns into very drunk. So drunk, in fact that Guy ends up covered in his own vomit.
At this point, despite his current condition, Guy realizes how badly he's messed up. "This will do it" he says to his friend, feeling very sorry for himself. "My wife will give me boot for sure..."
His friend looks him over, shaking his head and says "Guy, this is no big deal. I have a plan that will keep you golden for sure. See this twenty dollar bill? Put it in your pocket. When you get home, and your wife sees the vomit on you, calmly explain to her that on your way out of the office today, a drunk guy stumbled up to you and barfed all over you. Tell her that he was so sorry, that he gave you this twenty dollar bill to pay for the dry cleaning!"
Guy thinks about it for a second, and concludes that this might just work. The twenty dollar bill will definitely seal the deal. He thanks his friend, splashes some water on his face and heads home.
Not surprisingly, when he opens the front door (it's kinda late) his wife is there waiting for him, and she's pretty angry. She looks Guy up and down, and screams "you've been out drinking again! You're covered in puke and you stink! Get out of my house, you drunk"
Guy is ready for this. He was preparing his response the entire ride home.
"Baby, wait! I can explain! It's really so stupid, it's kinda funny. I had a long day at the office, and as I walked outside, this drunk guy bumped right into me and threw up on clothes! Gross, I know, but it's the truth I swear!"
His wife is not convinced.
Guy is ready, though.
"Baby, I gotta get these clothes off, but look, if you don't believe me just check my pocket. The fella that got sick on me felt so bad, he put a twenty dollar bill in my pocket to pay for the dry cleaning. Thats how you know I'm telling you the truth! Go ahead and check!"
His wife reaches into his pocket, careful to avoid the vomit, and pulls out two folded twenty dollar bills. This calms her somewhat; it is a pretty strange explanation, but the money is there so maybe Guy is telling the truth?
She looks back at Guy, and says " I'm sorry I doubted you, Honey. But I thought you said he gave you one twenty dollar bill. What's the second one for?"
Guy has this covered too...
"Oh, that one is from another fella that crapped in my pants"