as SLF, and more frequent SLF than the average traveler, hearing the same "funnies" over and over and over gets irritating. I know, I know, its done allegedly to get pax to pay attention.
Nonetheless, if crew treat the safety announcement with silliness and humor, it gives me pause to think about how they consider that part of their job.
Yes, I know, the lav has two way mirrors,
Put your own mask on first, then assist children or those asking like children,
etc
etc