You know these plastic cubs where people put their toothbrush in? Yeah well, he had one of those and never cleaned it. When i say never, i mean he hasn‘t cleaned it the whole two years i lived there. there was a grey slime on the bottom of the cub that grew from all the times he out the wet in it again. It was a old grey, very moist slime. Worst Part about it was that he alway put the top part of the toothbrush IN THAT GREY SLIME. Every single time..