Out in the wilder parts of the internet, there are whole forums where people highlight uses of 'Engrish,' usually on shop signs or posters. The 'r' and 'l' sounds used in English aren't easy to master for those in the Far East, and that can often lead to misunderstandings. As this shirt shows, you're only ever one wrong letter from a completely different sentence.
We don't know if this shirt is an honest mistake, or a joke worthy of the 'Engrish' websites, but we're fairly sure it isn't supposed to be taken literally. Nobody needs to be anywhere near someone who'd consider doing that - although at least if they 'make noise' at the same time we should have enough time to start running in the opposite direction before the worst happens. Please consider carrying hand sanitizer everywhere you go just in case sometime decides to do this in your vicinity.