I was wondering if you guys have come across the CSSRS-2000? Thats the Chinese Special Sticky Roof System-2000 for those of you who aren't familiar with it. This is a special unit and for legal reasons I can not post any pictures. It requires very little time to install and seems to be very effective. It is designed to make the time spent on the roof of Chinese restaurants much safer(try slipping off the roof while standing in this stuff), but they have also found that it doubles as a rodent killer, pigeons, rats, medium sized dogs, etc.. It is also recommended that you strap your boots on tight during working with this system.