I love the idea of a trike with a fully enclosed faring. This seems to be the ideal riding tool that would keep me safe from chasing dogs. I could put a solar powered electric fence charger on board that would really make a dogs day if it decided to attack.
The down side to an enclosure is probably noise and heat.
The price of the recumbent trike is more than I want to pay. Other than that I think that it would fit my needs much more than a DF.