Get on and ride long enough, youll go down. Might be a person Turing left in front of you, a person backing out of a driveway, someone crowding you over, or a blown tire. Theres always something. Its just a risk you take to ride. Glad he made it through. Some do, some dont.
List of crap that made go down.
Hit a dog.
Hit a flattened out beer can.
The rain.
Guy cut a corner too tight.
Dropped bike off back of a truck.
Flat tire.
High speed wobbles.
Pigeon hit me while I was going 70 and rang my bell.