Apologies for the shameless abuse of AIBU for traffic 
DS2 (17) had train tracks put on today. He's just phoned from work to say that two of the caps have come off, and the wire has popped out of the end and is sticking out in his mouth and cutting him. What should we do? We can't contact the orthodontist at this time of night, and I'm worried about him going to bed with it like that. Should we cut the loose wire with wirecutters? I have fine ones meant for jewellery making, but will the orthodontist be pissed off if we cut it?