Almost got myself in quite a predicament.
Took the kid and dog up into the hills by home to get into the snow. While coming up the main forest road, there was some tree branches down in the road. I didn't think much of them until my front tire hit one that was buried and kicked it up. Luckily I was going slow and stopped as soon as I heard it. The front tire was still on one end and the other end had flipped up and gone through an arch in a soft brake line. The limb was against my ujoint at the pinion, a soft brake line, and the gas tank, right at the top edge of the skid. All while being pinned in place by the driver's front tire. Of course I didn't have any type of saw or anything to cut it with. I was able to ease back off a few inches at a time while hopping out to make sure it wasn't going to catch the brake line. No pictures of this as it all happened in about a minute, but a ripped brake line or punctured gas tank could've been a real damper on a 30 minute trip into the snow!
I hate going over branches / dead limbs just for this reason.