I was a motorcycle courier once & one day after dropping off a delivery in a dead end street I had to do a U turn in the road, it was a windy day & just as I got half way round in the road, a crisp packet (chips to you Americans) blew under my front wheel & the inside of those is oily, so tyre gripped packet, road gripped other side, but bike went straight down due to the grease between the sheets
What the F**k ? Packet was still stuck to tyre, which is how I found out ! Whats the odds ? Lucky no damage as no mph fall with me acting as a crash mat for the bike !