Okay, maybe hijacked is not quite right. I can give you the long sordid story, but to cut a long story short, i started advertising on adwords, and my business picked up. My main opposition saw this and now he has started doing the same....... pity, but thats business i guess!

however...

i am still number 1 and i have not increased my cost per click

since he came on, i have consistently run out of daily funds

Have now increased it 3 times in 3 days

I think, he is clicking on my adds on purpouse so they do not display (once funds are gone)?

3 questions

1.Is this possible?
2.how can i prove it?
3.and how can i stop it?

Tearing my hair out!