I have two part-time jobs in the same shopping centre, in different shops.
I work at one shop two mornings a week and whenever else the boss needs me.
I work at the other shop three afternoons a week and some Saturdays.
I think I'd go insane if I had to do a customer service type job, full-time because I get very tired from having to pretend I'm interested in the customers and smiling all the time and still being nice to the many grumpy, rude people around here. I must be good at it though, because my second employer poached me from the first one, and then, another employer in the same shopping centre wanted me as well.
I hate customer service, but I have to support my 13 year old son on my own. He's gifted, and I don't want him going down the same road as I did.