Lets see now...
Gun: Arsenal SLR106
Setting: Private range
How did it fail: Failure to extract spent case
What was the remedy: Application of my boot heel to the charging handle
Was it your pistol or someone else's: Mine
Notes: AKs don't fail? Really?
Gun: Ruger SR556
Setting: Private range
How did it fail: (1) Multiple failures to extract casing, (2) bolt carrier grinding out chunks of aluminum from upper receiver.
What was the remedy: (1) Tap out casings with rod from muzzle end, (2) no solution.
Was it your pistol or someone else's: Mine
Notes: Tight tolerances, eh?
Gun: Bushmaster AR15
Setting: Public range
How did it fail: Stuck casing, bolt locked up
What was the remedy: After prying the bolt open, tapping the casing out with a rod
Was it your pistol or someone else's: Mine
Notes: Another tight chamber...
Gun: Glock 19 Gen. 3
Setting: Various
How did it fail: Stovepiping, brass to face, failure to eject, erratic ejection, etc
What was the remedy: Ongoing issues
Was it your pistol or someone else's: Mine
Notes: N/A
Gun: Glock 34
Setting: Public Range
How did it fail: Brass to face, erratic ejection, etc
What was the remedy: N/A
Was it your pistol or someone else's: Someone else's
Notes:N/A