My gelding purposely gets into the burs I think. I clean them out of his mane 2 times a day at the very minimum. He will walk over, get them in his mane, and immediately come to the gate- like "hey! I need to be brushed!"
If something came up in my life, for example, I am having surgery next month, his mane and tail will probably have burs, and when I am healthy enough, I will probably spend hours with conditioner, MTG, a comb, and a horse.
If someone noticed that my horses had burs and knocked on my door, I would be very grateful for a little help brushing them out after a surgery or an illness.
Maybe knocking is a good idea... The worst that can happen is they'll be rude and send you away. And who cares? Its not like you'll lose friends over it... And maybe, you'll get an opportunity to help the horses with the burs Posted via Mobile Device