A week or so ago, I attended a party at a fancy catering place.  The evening included cocktails, dinner and music being played by a local group that obviously plays these kinds of parties regularly.  I listened.  They were quite good.
Some of the licks the bass player was playing caught my attention, so I focused on him a bit.  The first thing I noticed was that he was a lefty.  That’s not all that unusual; Paul McCartney, a pretty famous bass player, was a lefty.
The next thing I noticed was that that the bass player wasn’t playing a bass made for lefties, but rather he was  playing a right-hand bass, but turned upside down.  Although I didn’t recall ever having seen a bass guitar player do that, I have seen left handed guitar players do that quite often.  They simply flip the guitar over and restring it (i.e. reverse the strings) for left-hand playing, as can be seen in the case of Jimi Hendrix here.
OK, so I was thinking that this bass player was doing a Jimi Hendrix thing with the bass, but the problem was that his fingers were in the wrong places to be making the sounds I was hearing.  WTF?
I looked closer, and I’ll be damned.  He was playing the bass upside down, with the STRINGS upside down too.  He simply flipped a righty bass upside down and played it that way as a lefty.
Watching him play (and he was damned good) was twisting my mind in all sorts of directions.
I felt I had to share this amazing thing with someone.  I saw a colleague standing at the bar, and here’s about how it went:
Me:  Hey, did you check out that bass player?
Him:  (looks at bass player)  Yeah, what about him?
Me:  Well, for openers, he’s a lefty.
Him:
Me:
Him:  How about those Giants?
Undaunted, I sought out another person with whom to share my amazement at what I was seeing and hearing.
Me:  Hey, did you check out that bass player?
Him:  Which one is he?
Me:  He’s the guy on the left.
Him:  (looks at bass player)  Yeah, do you know him or something?
Me:  No, I don’t know him, but did you notice that he’s a lefty?
Him:  How can you tell?
Me:  (Trying to think of way to answer the question without using words like “fret board” or “headstock”).  Well, look at the guitar player next to him.
Him:  The guy playing the red guitar?
Me:  Yeah, that guy — the guy on the right.  You see how his guitar is pointing to the left?
Him:  Oh, yeah.  So he’s a lefty?
Me:  No.  He’s a righty.  Look at the bass player — the guy on the left.  His guitar is pointing to the right.
Him:  So, the guy on the left is a righty?
Me:  No, he’s a lefty.
Him:  His guitar is pointing to the right and he’s a lefty?  I don’t get it.
Me:
Him:
Me:  How about those Giants?
This kind of shit happens to me a lot.