It was more what I saw than what I heard, but if I'd understood the language being spoken then what I saw would not have seemed as funny. My daughter-in-law is Italian, and the first time we went to visit her and my son in their new place, they were thrilled to bits to have somewhere to call their own and were showing us all the features and facilities, including some Italian channels on the telly for daughter-in-law to watch occasionally.
We were all sitting around the TV half politely watching this stuff and half politely talking to each other when an advert came on featuring a mother and daughter, apparently conversing with each other using their laptops. Obviously the voiceover was in Italian, but it was clearly an ad for some social network. Or not. Suddenly the screen was filled with a hand thrusting a giant tube of Vagisil towards us. Thirteen year-old daughter sniggered slightly, but everyone else just grinned and took it pretty much in their stride. Apart from me, who laughed so hard I was in tears and had to go outside to compose myself.
I am still working on revenge re prankster daughter-in-law, who understood every word and knew exactly what my reaction would be