Can I still drive with a bad tensioner?

I have been hearing a minor "dragging" sound when pulling up with my car for a month or two. The garagist discovered that I need a new tensioner for the timing belt. His explanation was a bit odd, he said I could still drive for months, but also said it could break tomorrow or the day after tomorrow. He... show more I have been hearing a minor "dragging" sound when pulling up with my car for a month or two. The garagist discovered that I need a new tensioner for the timing belt. His explanation was a bit odd, he said I could still drive for months, but also said it could break tomorrow or the day after tomorrow. He told me I can get it fixed on Monday and that I can drive if I do so carefully. I really need my car on Saturday. Can I do this? What are the chances that my car will break? Anyway I will drive carefully. Can't believe I drove like this for months already, but the sound is so subtle. May as well use it for another day.
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