On a recent Christmas Job my horn took a tumble and has crunched a dent in the 3rd slide and pushed it out of alignment as I can't empty water out of it now. It wasn't the only accident that day as one of our bass players slid off the temporary stage but he damaged his back rather than his instrument. (Stage was high, slippery metal with no handrails during all the icy weather). I can't spare it to get repaired as we have Butlins coming up but I think it has altered the sound and tuning of some of the notes. Is it my imagination?