Hi, this may sound silly, but an idiot, workmate of mine was using Bleach (undiluted) to clean his bong (15 to 20 seperate occasions he did so, apparently). He said he rinsed it out thoroughly with water every time afterwards, but I have used this bong many times after he may have potentially used the bleach. I never remember tasting anything too out of the ordinary, smelling bleach fumes, or getting sick, but we had a tradition of smoking after work frequently from his bong. Will this have lasting, negative health effects for me (lung damage, etc) down the road? Thanks!