I've done that too. The weekend of the 4th the year my old Tb had his eye removed my neighbor forgot to tell me he was going to be shooting fireworks off on the 5th that year. So me thinking I had lucked out and fireworks were going to be skipped that year, turned my guys out. At the first BOOM I ran out to put them up but the damage had been done My mare had already run Mick into the fence on his blind side. I spent the better part of an hour pulling out splinters He was such a gentleman! A few weeks later I was grooming him and noticed a hard spot on his neck. The vet was coming out the next day for routine stuff so she looked at it. One small cut with a scapel and out popped a splinter about the size of yours. It was baffling how there was no swelling or infection around it.