[dennis in se pa]

I have had 12 dogs over the last 45 years. The first one got a flea collar. I got him "used at about 1.5 years old. I was lead to believe that dogs should have flea collars. When I put the flea collar on him a few weeks after I got him I noticed a change in his behavior. After a week or so I took the collar off and he returned to "normal". It had slowed him down. Ever since I have not used them. I have never had a flea problem, and I have removed less than 10 ticks over the 45 years. So they are not necessary. At least not in my experience. Has anyone out there had a similar experience? It seems to be a big industry that has people convinced they need a product that in fact most do not.