I haven't been able to find anybody thus far that can relate to this so I thought I'd take to the Off-topic discussion to see if this is unique to me. Basically, sometimes, if I'm being assited or helped out in my completion of a mundane task (usually by someone with whom I am not particularly familiar) I have been known to experience a palpable sense of pleasure. I can't stress enough that it is completely non-sexual, more akin to the kind of pleasure you might associate with entering a very warm, cosy home after having been out in the cold. It's basically a very intense relaxation. This is no ordinary response to being looked after, it's much more considerable than that. As if my very bones were flooding my system with dopamine.