Weird way of testing a bass

Recently I sold a Squier Bass VI. Had to meet the buyer halfway from our homes. It was getting dark and rainy.
I took the bass out of my car's trunk and handed it to him and in no time the guy is noodling way up on the neck. He pulls a heavy bluesy, One-and-a-half-steppy bend on the G string, 18th fret and bleng, the string slips out of its saddle. He gives me a quizical look, gets back to Stevie-Ray-Vayghning is way into the bass and bleng, bleng. The string slips out again. Twice in a minute.
I never had any problem with this instrument. I don't play that high on the neck so I never faced these issues. Hell, I'm not even bending the strings. I slide, I hammer, I pull, but I don't bend.
Me: "I don't know man, I'm a bass player"
Him "Me too..."



I made a discount on the bass because it was getting dark, rainy AND Awkward.
I wondered afterwards if he hadn't planned it all along.

 

Is it a clever pun or is there deeper meaning?

 

Ah! I'm the only one here that can't make up his mind because you didn't leave me enough time to correct my grammar.

 

Ahahah. I thought my attitude was judgmental but you just showed me how it's done.
I'm imagining myself taking the bass back abruptly and saying "Pshh. You're wasting my time."

 

I just laid me down

 

I wish I could look that sharp in the rain.

 

And I fell for it. I learnt my lesson there, so there's a silver lining.
Enjoying a bass VI is ok but...

 

Color me stupid .