Thanks. The ground was really hot and the tires are soft rubber mtb treads. Last time I put road 1.75 or 2.0 on it, I ran over some farm tractor mud and gravel and about did that same thing, so I usually just leave something knobby on and try to take it easy.
"Flying is easy, son! It's landing that is the hard part!"
The car driver at the light stared and started to get out, but I just gave them the 2 thumbs up and shoveled the bike out of the road.