I aim for being on time because I hate being early. I have this absurd fear of wasting time and being bored and if you're early you might find yourself in that situation.
Merman I notice is getting quite irrational in his old age about being early. It's especially bad when we have to get on a plane.
He'd rather wait in a terminal for half a day, just in case the lines are long at security or whatever. Me, I like to cut it close and in 50 years I've never missed a plane. I've held one or two up but they've always been perfectly gracious and waited on the tarmac for me (it's true).