How hard is it to do it right the first time

[Alaskan]

Went too KFC for dinner, in the drive-thru my truck started to stumble, then run fine, then stumble somemore, by the time I got home it would'nt stop stumbling. Ate dinner and started looking it over. Found #3 cylinder was'nt fireing, pulled the plug it looked ok, tested it on #1 and it fired. Checked to see if the plugwire was touching the header or shorted some where, nope everything looked good. After all the guy I bought it from just put new wires on it. I went to replace it with a plugwire I saved from an old set and the wire just sliped out of the boot, I had'nt even touched it just the wire next to it and it just popped out.! What the HECK. Pulled the boot off the cap and removed the crimp terminal to find the guy had'nt crimped it right. I went ahead and removed the rest of the plugwires for inspection and found them all in the same condition. They pulled apart like they were'nt crimped at all. I can't beleave someone would spend the money for ( Accel Super Stock ) plugwires and not crimp the terminals properly.
This pic shows the difference between a good crimp on the right and the one that guy made on the left.


This next pic shows what happend with the bad crimp.

I just had to vent.