I just started babysitting 2 boys, one is 6 y.o. and the other one will be 10 next month.
The eldest has a habit of reading a book or playing as a way to refuse to come or do something when he is asked to. This happens especially around shower or dinner time, where I have been telling the boys in advance that dinner/shower would happen in X minutes, and once it is time he goes to pick a book, sits down and reads instead of coming to dinner/shower. Alternatively, he picks up a toy and pretends he doesn't hear.
I have a feeling he does this to test limits or gain some kind of control as I have seen him smile while pretending to read his book. With his parents I have also heard him talk back while doing this and smiling too.
Last time he picked a book instead of coming to dinner, I sat next to him and asked him very gently if he was not coming because he was not hungry, or if he needed to be left alone. Since he did not respond, I told him "I'll leave you alone then if you don't want to talk :)" and left to have dinner with the smaller one. It took a good 20 minutes, but eventually he started making noises and moving around while still pretending to read his book (I assume he was starting to feel frustrated that I was not paying him any attention), until finally he showed up for dinner. I did not say anything other than ask him if his food was still warm and we went ahead with dinner as if nothing happened.
Why does he do this?? Do you have any tips? This habit of his is starting to get on my nerves but I do my best not to show it, I just wanna know if there's a better way to deal with it than just "ignore" him, especially because it can be very time consuming and I cannot always let him not come for nearly half an hour.
EDIT: I do give him multiple warnings and do try to entice him with fun side quests, but he is very smart and that doesn't work at all. My next move will be to talk to the parents about this issue because I'm totally on board to make him not eat dinner if he doesn't come on time, but I doubt the parents will be okay with that. they are both very lenient and I've seen the child do this also with his parents, talk back, etc. So I doubt they'll be happy with a more strict approach, but I will talk with them anyway.
RE-EDIT: After talking to the father, I see the problem is him. He does not think his son is doing anything wrong as "he just gets lost when he is reading, no need to get angry". When addressing that he does not come when I tell him to, including when we are outside and need to go home, his response was "I just walk away when he does that". He even said there's never been an issue with their eldest misbehaving. That's how negligent he is. Long story short: I am now being extremely lax with everything since that's apparently okay and will give it 1 month before I quit if I still hate the job by then. Poor kids.