Hehe in my gym, there was once when a 60-70 year old uncle came to lift weights. He chose the weights that were definitely out of his ability, and while doing dumb bell presses, he made squealing sounds like a kettle when the water is boiled. I'm not annoyed or irritated, more like I'm losing focus when I'm lifting because I was trying to control myself from bursting into laughter.

Actually I should be more worried if he gets a heart attack, especially when I'm the only one with him in the gym.