I was drinking in Mulligan’s pub in Dublin 2 last night and while using the toilets noted the worst graffiti ever written on a stall door:
SCOUSERS FINGER THEIR GRANNIES. FACT.
There are many opportunities for mis-spelling here but the writer is clearly determined to let us know that young men from Liverpool abuse their elderly relations, many times, and that this is indisputable. I need a holiday from Dublin.
53 degrees 
I suspect he means that Liverpool people report their grandmothers’ criminal activities to the police.
As one would expect any right-thinking person to do.
You’re right. How could I have mis-interpreted it.