We dont have a REAL derby according to some, but i have family and friends in Newcastle and some of the lads i play basketball with work with Geordies and mackems.
A loss causes a little ribbing, but its all forgotten after a few weeks when something else becomes flavour of the week.
Also my wifes a barcode so we have a bet each season. If Boro finish above the barcodes (like they did

)then she has to wear a boro shirt whilst she is at work for a week, and if the opposite happens i wear a newcastle shirt as i work for a week.