I would say it sounds as if the mechanic who performed the tube installation was on his/her first day on the job, and not at all proficient at it, then.
I think I might have gone back to the LBS and gently pointed out that I could have been injured or worse due to the fragile skills of the wrench, and what could they do for you to keep you happy?
Just my humble opinion.
East Hill
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TRY EMPATHY & HAVE LOVE IN YOUR HEART, PERHAPS I'LL SEE YOU ON THE ROAD...