The low crawl. It's not the most challenging obstacle, so it's easy to get cocky. This can be a problem if the wires are electrified or barbed. I'll take barbed wire over a shock any day but I prefer neither.
One drill I do with my clients is setup the low crawl and place a stuffed animal on their back. If the animal falls off, you have to go back to the start. This is a good way to see where you're at with your low crawl, but because you have to do it slowly, it also really allows you to focus on your form. What are you tips and techiques for practicing the low crawl?