Whenever I let Spence drive with me first without stuffing him inside a cage, eventually he climbs onto my lap. (I know, danger, blah blah.) I usually allow this because it's preferable to me strong arming him into the passenger seat while driving with one hand.
I used to think that Spence did this because he loves me and stuff. And then Diego and I took a trip to Home Depot, and within five minutes, Spence was climbing all over Diego.
As it turns out, Spence is just attracted to power. Vroom vroom!