Why do people expect everything?

So my husbands has his cdl licenses and he found a yard near are apartment complex to put his truck in and bring his car home instead of leaving his car so far away where he works. My sister came over to see me on my day off and he expected me to ask her to drive him to get his truck that's at his job So far away drive to the yard and back to his job to pick up his car and go home. I hate asking people for favor especially on there day off it's annoying she was planing to enjoy her day go to a movie with my cousin and relax. So I say no that's annoying ask ur brother she's not a taxi driver and it's her only day off get the f out of here that's so annoying. Ofcourse he's dead selfish and gets mad but it's retarded don't understand y u mad for u don't have maid service if I said no figure something else out don't be retarded call ur dam brother. So ducking weird what do I say to that