I'm not going around saying it's "safe", let's be clear. I'm saying that one exposure is very unlikely to kill you. It's obviously not good for you. But you're trying to say that one acute exposure gives you a not insignificant chance of developing mesothelioma. You should prove that, because I don't think most people find it reasonable.

One bad sunburn doesn't give you cancer. One bad radiation exposure does, and with extremely high likelihood. One bad asbestos exposure? Obviously it doesn't give everyone cancer. It clearly doesn't give most people cancer. So what percent of such cases lead to cancer?

Based on how many houses have asbestos in them and the length of time we spent handling it carelessly, I don't see a particularly significant number of cases. So show us your numbers. I can make my case pretty clear with general observations, but I will absolutely change my mind if actual research says otherwise.