This a safe cut to make?

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9th week working construction, had never used a wet saw before this day and boss wanted to me make some 1.5 inch rips out of four inch tiles. Told him I wasn't comfortable making those cuts just yet with my fingers so close, he said I'll show you, did this, and after I just reiterated again he has much more saw time than I do and I didn't feel right comfortable so he had to do it. I finally tried a couple at the end though but pulled one hand away as the tile gt about haklfway through the bla...