96/365 Battling an odd fire

I stopped to get gas at Kroger (love that $0.10 discount!) on my way home from work Friday, and while I pumped, I watched these two firefighters battle a small fire in a recycling bin.

Wait a second. A recycling bin? How the heck did a fire start in there?

A regular dumpster full of trash is more believable. Someone tosses in a cigarette butt or other recently extinguished item, and it ignites.

But a recycling bin? Perhaps the 90°F+ temperature was a contributing factor. Who knows? Smells suspicious to me.

Camera: Canon PowerShot SD1000 at about 5:00 p.m.