I glanced at the title and read it as "Slugs may kill!"... which I suppose they might, if you let them crawl up your baby's nose! Seems about as useful a warning.
Slugs can definitely kill! We had an invasion of big orange slugs in our garden a couple of years ago and after I spent hours and hours, day after day fishing them out of the vegetable patch and chucking them out into a patch of trees nearby, only to have them slither back each night, I thought I was going to die of exhaustion. So I gave up and used an entire box of slug pellets - so much for the environmentally friendly option!
I swear they were genetically mutated slugs!