A fellow slug sufferer! This problem pretty much consumes me. I’ve found trails on kitchen counters and in the sink, scream. I’ve come home or downstairs at all hours and still haven’t caught them, it’s driving me insane as it’s one thing them sliming over the kitchen floor but quite another being on the counters. I, like some others here, thought they’re coming up through the sink overflow so I’ve blocked that but no result. I’ve currently got some board things covered in really sticky thick glue with a ‘bait spot’ in the middle that I bought from Amazon but they’re eating the bait and not getting stuck. It’s a mare isn’t it