Too Much Pressure - short film

The results of too much pressure shows in different ways. The short film above shows one of those ways and I find it a miracle the guy was able to hold in for that many hours. Strange it is the lady didn't notice it herself but she had a good laugh.
Did I had it too? I can't say although this film was better than expected so yes I watched it till the end although it wasn't always clear to me what the funny part was.
No fun is if you are told when to laugh (back ground sounds) which is something I always disliked. I wonder if it makes it easier for people to laugh if this is added. Is it?

13.11.24
The prompt (see title) is provided by @daily.prompt