So, we had an office whose building enclosed a tiny parking lot, maybe six or seven spaces. Two guys showed up with leaf blowers. Our location put us on the edge of the space with a door and windows making the noise quite prominent.
An hour in, my buddy said something to the effect of, “I wish they’d be done soon. They’re giving me a headache.” Queue other buddy cracking up hysterically. Turns out, he’d surreptitiously tuned our stereo (hooked up to a computer) to a youtube channel of leaf blowers blowing for hours. None of us caught on. The actual guys with blowers had been gone for a long time.
It’s still one of the funniest pranks anyone has pulled on me and I’m still mad at him for it.