Since you're looking for goatman while riding your bike keep an eye out for any sightings of chupacabras while you're at it!
I seem to remember where I grew up there was a reported goatman out by the lake that would throw old tires off the top of the hill. Since I grew up in TX I'm sure our goatman is a lot bigger and stronger than yours
Of course, that hill area was also a popular place for high school kids to go party and drink on the weekends which probably explains a lot.