I had a candidate in last week and I asked about some experience he had listed on his resume. He said he wasn't too experienced with what I was asking about so I specifically pointed to two positions his resume said he had and his reply was that the recruiter must have changed the job titles from what they actually were.

He was a good candidate but not quite what we were looking for and we both wasted an hour of our day. The only upside was that I was already looking for a reason to stop working with that recruiter.