A 35-year-old’s reaction to a bank’s computer system playing up was to call staff members “f*****g c**ts” and “f*****g sl*gs”. Daniel Castleton, of Broad Street in Lynn, appeared at the town’s magistrates court on Thursday where he admitted three counts of using threatening language to cause alarm or distress as well as having cannabis in his possession. On April 9, Castleton went into Nationwide in Lynn to withdraw some cash from his account. There were some technical issues with the computer system, which caused Castleton to get agitated. He accused a member of staff of stealing his money. T…