It should never have hit the bottom at all is the point. It also got the stuff to the left side wet underneath. Hell I've been working with a plumber on site and they always fully emptied the cabinet and had something under the sink to catch any water and would remove the trap plug first before loosening fitting to allow all water in the pipes to drain before anything else. I believe he had the right tools for the job but his work inside was sub par. Hell the person that owned that home should start dumping a large pot of boiling water down the drain when they pour grease down the drain to melt and make the grease flow to the sewer lines. Hell when I did maintenance at a retail chain I would put Drain O in the sinks weekly and the clogging and smelly sinks worked and smelled fine after I started working there.