The credit controller, from Gloucester, says he now suffers "appalling" abuse from the authorities and public who doubt his motives.Link (Thanks, BritSwedeGuy!)
The bus-spotter, officially known as an omnibologist, said: "Since the 9/11 attacks there has been a crackdown.
"The past two years have absolutely been the worst. I have had the most appalling abuse from the public, drivers and police over-exercising their authority.
Mr McCaffery, who is married, added: "We just want to enjoy our hobby without harassment.
"I can deal with the fact someone might think I'm a terrorist, but when they start saying you're a paedophile it really hurts."