Here’s mine:

Years ago, after cleaning front wheel bearings in a SafetyKleen I dried them off with compressed air. At once it started to spin on the end of my finger. It started spinning faster and faster, making a really cool and loud whining sound.

I noticed a tech close to me flailing his arms that I mistook for encouragement. I continued blasting the bearing with air and in that instant it exploded a frightening crack!

Bearings shot all over the shop. Broke windows, dented tool boxes and trash cans.

Miraculously missed me, two other techs and two very expensive cars.

Dumb, very very dumb

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)