It seems that is is not just the postal strikes that are delaying mail. The post office has been dealing with a rising number of complaints caused by snails eating the letters once they are in the post box. Slugs and snails are particularly partial to paper and also like the taste of the gum used on envelopes. So much so that the slimy creatures are devouring mail inside post boxes. Some customers have made complaints after their letters arrived covered in slimy trails or half eaten. Despite putting slug pellets inside mail boxes and cleaning the boxes regularly slugs and snails still manage to get inside. It seems it might be necessary to devise some sort of snail deterrent for the opening of the box to stop the creatures from getting in.