What a way to start the day. Had a spare, so it added a few minutes to my morning. Carefully cleaned the dust from around the plug, swapped, started and rode.
NBD, but what the fuck?
That's sad. Good think you swapped the sparkplug before running the bike, it could have damaged the coil to run without releasing the spark energy. Envious and malevolent people are a plague to bikers. I spoted one guy that added dirt in gas tanks, ages ago when gas caps did non always have a key lock, needless to say I had him confronted to the bike owner and all three we had a very, very bad time...