Well, this photo comes under a few headings for me. Shenanigans and Baggage.
1st off he gets into everything because he is so nosey. And Baggage we all have it and burs to me are baggage if you don't remove them they will get deeper into your fur and are hard to get rid of, same as a problem. Get to the root of it so it won't follow you the rest of your life and drop its little seeds to make more. Remove the baggage before it gets out of control, I say.