Sam just flew into the house, with his soccer shorts COMPLETELY COVERED with spiny burrs. "I was taking a shortcut!" he said. "How the heck do I get these things off? They are poking right through into my BALLS! AAARGH!" (A very good argument for wearing underwear even during school vacation, I think, but I save my breath.)
"Ummmm... I don't know. I think you have to pick them off one by one?" I said. I have actually thrown shorts away on occasion, when they were so badly burred.
Sam stood for a while, naked, deep in thought with his shorts in his hand. "okay, I need a haircutting comb." he said finally. He got the fine-toothed comb, and COMBED the burrs off. It took about ten seconds.
AND he's OFF! Into the wild blue yonder, upon who knows what new mission.