A few years ago the wife and I tool her niece with us to a gunshow. The tires on my wifes wheelchair were quite low and when we stopped on the way to fill them discovered that her tire gauge was gone. I topped the tires off by feel and, as we know now, overfilled them.
As we entered the gunshow, we went over a bump in the doorway and one tire had a loud blowout. People hit the floor all over and one guy (off-duty cop) came back up with a drawn pistol. We got teased about it and the niece still talks about it.