Rigs_and_VesselsRig crew turn Guardian angels in North Sea rescueOffshore workers, lifeboat crew and Coastguard team up to save swimmer and kayaker off ScotlandPeril: the two men clung to the anchor chain of the Well-Safe Guardian after being caught in a tidal driftPhoto: RNLI/MICHAEL MACDONALDEoin O'CinneideLondon