Battle Royale

As I type this, I am listening to Aidan whine and cry in his crib. Nothing makes me angrier than when he won't take a nap, he's loud, and he keeps Aubrey from sleeping. Grrr. Why do I engage in this battle? Because he's an absolute monster by 4:30pm if he doesn't take a nap. I realize we're probably winding down on naps, but we're not there yet. Any suggestions? Kyle uses incentives during the week, like watching Clifford or Super Readers. I try that on the weekends, to no avail. Last resort is spiking his milk with some Valium at lunch time. (kidding)