Never work on your bike when angry.

Had an argument with the Missus just before I went up to the shed to do a service on the bike (ZZR1100). Changed plugs, cleaned air cleaner, changed oil, all the usual stuff. Put it all back together and started it. Ran funny and as soon as I gave it a bit of throttle it started to pop and bang and scream it's tits off at the same time. Switched off real quick and scratched head vigorously. Light bulb came on and produced an intense round of swearing. Not only had I forgotten to hook up the wires to one coil, I had left the rags in the throttle mouths that I put in there to stop crap ingress. Pulled it apart and saw three rags with no sign of the fourth one. Popped up the slide and saw it wedged against butterfly valve. Spent 20 minutes picking it all out with needle nose pliers. threads from rag had been pulled out and had wrapped themselves around the throttle shaft. Puts me in contention for dickhead of the year. Just be careful I say.