For some time now I've been going through can openers like never before. In the past we've had them years and they just seemed to work. Not a complicated item after all. Recently they just seem to give up working.

From the couple of quid butterfly type to more expensive ones they seem to start well and then give up after a week or two!

Are there unseen forces at work or am I missing something. I'm thinking of trying the old stab and cut type soon in desperation.