OP
Geordie Spark
don't really have many issues with non payment tbh. on the odd occasion, a stern letter along the lines of if non payment, debt collectors will be contacted does the trick.
I take it that for the benefit of the non-Jocks among us you translated that from its original " Och! aahl be seein ye Jimyee. Thistles up yer kilt, porridge in yer sporran, treacle in yer bagpipes an' a caber up yer jacksie'!!"