The Driving Insane

Mumbling guy: WhereCouldIFindtheHowTo?
Me: How to what?
MG: shtrck
Me: sheetrock?
MG: yehstrckbathrm
I check
Me: We don't have any books specifically on sheetrocking. How about if I give you the area for general home repair books?
MG: homerepairok
I hand him the paper with the call number on it.
MG: IDontUnderstandWhatDoesThisDo?