Trafficator switch sounding horn on turning!

[A G Wood]

I don't know if the detail arrangements are the same on Sevens, Ruairidh but I had a similar issue on my Fourteen and I discovered the soldered horn wire terminal tab at the switch was intermittently touching the trafficator cancelling mechanism (only when the trafficator was activated) inside the steering wheel center. On more careful looking it appeared there was an extended piece of vulcanised cardboard (long gone) under the terminal  that was supposed to stop that happening. I carefully bent the terminal to give it a bit more clearance, but plan to do a more 'professional' fix one day...
Edit: pic added, it actually is blurry it's not your eyesight going