An Unusual Fetish (ad nauseum)

IveGotaFetish: Hey there
Me: hello
IveGotaFetish: Any guesses about my username?
Me: not a clue.
IveGotaFetish: Do you have a BP cuff?
Me: not at the moment.
IveGotaFetish: Do you know how to use one?
Me: probably not correctly.
IveGotaFetish: Are you willing to explore a somewhat unusual fetish?
Me: that usually depends on the fetish.
IveGotaFetish: I've got a nurse / BP fetish ;-)
IveGotaFetish: Would you be willing to talk about it / explore it on Yahoo or Skype?

As with most fetishes, it's not what the fetish actually is, but how the guy wants to bring it up immediately. I'm a pretty open person, but it does require a certain level of trust which I'm not sure I have with someone who...well...IMs me out of the blue wanting to talk about blood pressure cuffs and nurses.

From his profile:

Mainly just looking for a nice girl to help me explore, both through chat AND some roleplay, my rather unusual fetish. I don't really know why anyone would want to explore a fetish without some level of activity involving said fetish...... To me that's like wanting to travel the world by looking at a map. I really don't get that but whatever. I do want to learn more about it. I would also like to have some enjoyment (by way of roleplaying) during this exploration.

On the other hand, he seems almost too cerebral to even have a fetish. I get this vibe that he figures he should have a fetish, so he picked one and...now wants to explore it. Like a convert to a new religion who isn't quite sure what the rules are yet.