Why didn't you take the bike into the shop so s/he could do the repairs and not leave the store unattended? I surprised the owner didn't suggest that you bring the bike in. Most bike shops welcome bikes inside the store.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.