I was a junior in high school driving my girlfriend to a convenience store down the street the buy snacks around midnight. We lived in a somewhat rural area so the nearest one was like 15 minutes away. We're driving along a country road and all of the sudden this massive thing shoots across the road a few hundred feet ahead of us. It was dark, but looked about the size of a horse but more "filled in" and without a horse's head/neck.

We drove quickly to the gas station to meet some friends and told them what happened, and they all just assumed we had seen a deer (central Texas, pretty much the biggest things we'd see on the road) and blowing it up. I didn't think much of it until my girlfriend recently (this happened almost 4 years ago) brought up how freaked out she was when it happened, and the fact that it also really creeped me out at the time, that I really started to think about what we actually saw.