Jefferson may not be as big, strong, or as loud as Harrison, but he sure makes up for it in quickness and craftiness. He's gotten into rock salt, lettuce, make-up, DVD's, and wallets before I've even had the chance to process he's not where he was 30 seconds before.
And then when you catch him, that little stinker doesn't shriek or run or guiltily pout. Nope, he gives a full toothy grin and says "Hi!" And he completely disarms you. Kinda nervous to see how this plays out in teenage Jeff :)