Lliam usually wants me to sit in the back seat with him when we're driving somewhere. In fact, he already knows that he should try to guilt me into sitting with him by stating that his grandma Robin always does so at his request. I explain to Lliam that grandma Robin doesn't see him often and therefore is eager to be right next to him, and that I prefer to sit up front with dad. This seems to end the discussion for the moment.
A week later, rather than ask if I can sit in the back, Lliam simply drops a hint that "even when grandma sees me a lot, she still sits in the back with me." Well played, son. It's too bad that guilt tactics don't work on your mother.