Initiating a new fan

Even after I have seen this movie probably 20 times, I still can't stop from laughing out loud when Lloyd imagines himself lighting his fart in front of Mary's family. Last night, my wife was out with the girls, and my kids were in bed so I decided to watch it on Netflix for old times sake. I assumed the kids were all asleep. Well, the previously mentioned fart scene happens, and I hear my 7 year old son howling with laughter and making fart noises himself at the top of the staircase.