My invisibility cloak

As some of you know (or have guessed) I'm not exactly a small person. As my father has put it a couple of time I'm a "quiet, gentle giant". Don't let that fool you, getting in my way isn't a good plan for longevity. One thing I have yet to fully understand, is my amazing ability. I've noticed this ability for a number of years now. Most people don't believe me, that is until they see it happen. Cathy was one of these people. Even the first couple of times I'm sure she figured I was just not being forthright enough, or I wasn't doing what was accepted.
Well, I know I don't stand on the tables and start stripping - but really, having waiters and waitresses look straight through, around and over me does get a little annoying at times. I understand these people have busy jobs and to be honest I applaud them for the job they do. If it's good of course. I also understand that on a busy Friday night, there are going to be lots of people to serve and keep happy. The 6'4, 120 odd guy at the centre table who's looking straight at you and waving his hand ... well, you know, something as small as a "I'll be right with you" as you walk past me would be all it takes.
Even that apparently is part of my amazing invisibility.
It's not even that I'm a bad patron. I haven't complained about food before (unless it's totally wrong, or just plain horrible) - Cathy can attest to this, I love all food. When it's served by people doing a wonderful job, I try to be the best customer I can be. I don't do anything stupid (I may have been loud at a couple of events in my younger years, but even that wasn't over the top) but really, I'm just someone that apparently has an amazing ability to be invisible.
This skill would be so much better if I was able to turn it on and off at will. Or if it worked for other people, or even other industries. Would be wonderful to wander down the street perving on people and not being noticed.
Wait, I don't do that any more. That would have been before I was in a relationship. Yes, that's it. A long, long time ago in a single life far away...
Back on topic - anyone out there who is in the food service trade, please notice us big friendly giants. We don't like to cause too much noise, but if you continue to ignore me, I mean us, well really ... what else are we to do?

And if I ever find another weedy little turp jump in front of me again at any sort of food serving place, he's going to find himself squished between me and another immovable barrier.

Be warned.