More than one mother-in-law.
Two mothers-in-law.
Two wives.
When you see your mother-in-law backing off a cliff in your brand new car.
How I Met Your Mother
Punishment.
Because the thief was spending less than his wife.
My girlfriend knows about my wife.
The joke is its own pun-ishment.
Dual air bags.
When you see your mother-in-law backing off a cliff in your new car.