This bug I have experienced many times, and, like many bugs, it can be quite useful.
I typically climb all of the tall mountains near my base to put beacons on them so I can find my way home. This most often requires digging a trail to the summit. After I have placed my beacon, the trip down the mountain is treacherous, because the character tends to 'skid' down surfaces that are steeper than only about a 20 degree angle, or so. So, when I go into steeper caves, or down mountain, my little astronaut slips and slides very quickly down the slope, which can often lead to shooting right over