Jaston

My Jaston can be a hoot and he can be a stinker. This morning he made me laugh out loud with his comments when I asked him to get dressed. He told me- " I am stressed abt getting dressed." When I laughed and started pulling his shirt off he tried another tactic- "it's too boring to get dressed."
He has been biting his fingers and keeps getting sores cuz he bites at his skin. Well while he was eating this morning he tried to explain that his finger hurt because he was eating too much food." Gotta love the logic there.
He is obsessed with electronic games right now and gets upset when I won't let him play. If I won't let him play on my phone, he will try for my IPod or the ipad and occasionally he will try for the Leap Frog. I'm trying to come up with how to limit his time on electronics but am not sure how I can make him understand since he doesn't understand time. Any suggestions would be welcome.