wowy7,
If you build the pressurization and flammable liquid storage system correctly there is only a remote chance of an accident.
You can get quality model size air storage and distribution systems from Robart (robart.com/) and the flammable liquid, concentrated (waterless) windshield washer fluid, can be purchased at any automotive store. A pressurizable storage tank can be made out of schedule 40 PVC pipe and end caps which is usually good to 240psi. An electric arc can be used to ignite the mixture as it is sprayed from the storage tank. Some builders mix petroleum jelly with the windshield washer fluid to make it stick on whatever it hits. That is way out of my league.
I only use the flame throw as a backup to the Airsoft BB cannons. If the skunk does attack the rover then I have no choice but to flame him. I know that it is a tough way to go, but when the skunk is usually rabid they are going to euthanize him anyway.
Regards,
TCIII