cause it dont work alan! your much better buying from a vet or the rspca over the counter than buying crap like that from a pet shop
Every body knows that most products like this from a pet shop have a notorious history of not doing what it is suposed to !

We use the stuff that used to only be sold over the counter, but is now available in pet shops. We've never had a problem with it or had a pet with fleas.

correct me if i am wrong but Bob Martins has allways been pet shop availble

Dunno, maybe I'm thinking of the wrong stuff altogether then, I havent got a box atm so maybe I'm wrong

my rule of thumb might differ from yours Alan but i never buy the stuff from a pet shop as like i say ,it has a terrible reputation for not being any good!
Besides i buy most of my stuff from my local rspca as its allways much cheaper than any vets !

Our local RSPCA is over 20 miles away! I think we spend enough already at the vets as well! Never had a problem with the stuff we use and i'm sure it says that it used to only be available by prescription or something like that! I'm pretty sure its Bob Martins as well.

it is poo that the closest RSPCA is so far away