See this? (Just ignore the dirt.) it's from another improperly trimmed zip tie.
We have found hundreds of zip ties just like this on our boat. And on several occasions while working in tight spaces we have been cut by those improperly trimmed ends. They are like razors!
So please if you are working on your boat and need to use zip ties, buy a pair of these little cutters. They trim the zip tie even with the lock and eliminate any chance of getting cut. The next person who works on your boat will thank you from the bottom of their heart.