Crabbing is what my back trailer does when coming off of Donner Pass with a set of doubles, barefoot in the snow & ice. Slippng is what the front trailer is doing while the crabbing back trailer is trying to push it off the mountain, & finally puckering is what my behind is doing while trying to swallow the driver seat during the whole harry process.

The moral to the story boys & girls is don't be lazy, just pull over & sling the chains![8D]