TIFU by laughing at a fairly in the face for taking their 3 year old to a movie

so I work at a generally large event place think similar to where large indoor concerts are held. this week we had an anniversary showing of a some rated R clown horror movie that ive heard is extremely gruesome. keep in mind I have to turn away teenagers for not meeting the age requirement or if they are without an adult to go into the movie with them a couple walked up asking for 3 tickets. I kid you not i asked where the third person is, this coupled pointed down at their 3-4 year old daughter who would be seeing the show with them. Now I have no judgment for people who show stuff like this to their kids I don’t think its bad [parenting and its not against our policy to sell tickets to any age of kids for events similar to this as long as they have an adult. in my mind I chuckled a bit because lord knows what kind of nightmares this kid is going to have. IMMEDIATLY after this family told me where they wanted to sit my coworker comes by in the quietest fashion I didn’t even know she was there until she whispered in my ear in the loudest possible voice that was still whispering “yo that kids like 3 what the hell is it doing here” I look this couple dead in the eyes attempting to keep in my laughter and forcing a smile while asking if they wanted any concessions suddenly i break down laughing my ass off and continuing the most awkward eye contact with this poor family who just wanted to take their 3 year old into see actual nightmare fuel. The woman gave me the nastiest look and rightfully so as i sold her the almost 100$ of concessions her and her husband just bought after the transaction she stomped off with her husband and her child into the event room with their cotton candy slushy and that extra large diet coke and quite a few other things. to which afterword’s i laughed even more nearly in tears on the ground. worst of all my manager walked by our booth DIRECTLY after seeing this woman walk off into the stadium a little pissed looking while I’m behind the glass.

TL;DR: I looked a couple dead in the eyes and laughed at them for taking their 3 year old to watch a clown horror movie.