Billy Vunipola to leave Saracens at end of season / Billy Vunipola escapes with slap on the wrist from RFU over taser arrest / Saracens to continue team bonding trips despite Billy Vunipola arrest and tasering / Saracens to continue team-bonding trips despite Billy Vunipola incident / Billy Vunipola to face no Saracens action after Majorca arrest / Billy Vunipola's future in hands of RFU after drunken arrest in Mallorca / Billy Vunipola apologises after being arrested and tasered at Spanish nightclub / England player Billy Vunipola arrested in Mallorca. / Billy Vunipola issues statement after Spanish court decides punishment in 'express trial' / Saracens' Billy Vunipola cleared to play after red card against Bulls overturned