formal for "to steal"

Link to present incidents:
A man was arrested by an overzealous police officer for abstracting electricity on a London train after charging his i-phone on a socket on the train...Last week,19-year-old Nick Sivestri hit the headlines in NY after jumping on stage before a Broadway play in an attempt to charge his phone - at a fake socket which was part of the set. He said his phone had 5% left as "girls were caling all day".