Welcome to the Board! Drop by the Introductions and let us know a bit more about you.
For the topic you presented. Yes in theory, the kid in a candy store analogy may hold a bit of merit. However, we're adults and should be able to restrain ourselves just a bit. What you deem as 'intoxicated by the headiness of pleasure and seduction' then apparently translates into over-excitement and possible agression/pushiness. Also, I think the term you may be looking for is 'bottom feeder' not 'surface swimmer'. That is a joke, not a slam.
If you are just starting to break into the lifestyle as a single male, you already have the deck stacked against you. There are many couples, for whatever reason, who just don't want to play with single males. Now add into the mix that you are new and basically an unknown quantity...coupled with the over-excitement/pushiness/agressiveness...and it may not be that the couples aren't being considerate, but that you also are not being considerate.
The lifestyle can be very rough for the single guy...there are plenty of good tips here on how to be one of the 'good' ones. A little courtesy, etiquette, common sense, and possibly restraint, on your part can go a long way as well. You have seriously got to throw the vanilla mindset out the door as far as how to approach a couple/female, if you can't, you won't get very far.
I am usually nice to a fault and have a hard time rejecting people that I have no interest in playing with. The conversation may be great, so you don't want to lose that. But in reality, particuarly at the club or parties, if people are there to play and are not looking for single males a few things can happen: they will be harsh and totally blow you off, or they will ignore you because they don't want to give you false hope that something will happen, or they don't want to 'waste time' socializing with someone that doesn't fit what they are looking for (ie: potential missed opportunities with another couple that passed by b/c they were talking with a single male).
Stick around, there's some good advice to be had here!