I was playing Teenage Mutant Ninja Turtles for the NES when I stopped to ponder; when in a place full of sewage, am I in the sewer or am I in the sewers? Mayhaps both?

Also on further use of the root word, if a sewer contains and, by mixture, creates sewage then would a person covered in that sewage be thusly sued? sewn? become a part of the sewage, adding to and mixing it become a sewer themselves. To add to this comical display, imagine this person coming back from a renaissance fair wearing homemade clothing prepared for the setting and is tossed asunder to lose mass. is the sewn(made by way of needle and thread) sewn(thing in the sewer) worn by the sewer in the sewer now garbage garbage(medieval garb)?