Do you know anyone with really gross habits? I do.
My former boss at my job (she's still there, just not my boss) has these hard contact lenses, and occasionally one pops out. So what does she do? She puts it in her mouth to "clean it off" before sticking it back in her eye in front of everyone. Or she'll grab someone's water bottle or the spicket of the office water cooler to pour water over it. Sick.