After passing through T5 and JFK many times in CW and F neither my wife nor I had ever managed to get an appointment. The final straw was an 8 hour connection stopover in JFK where we were told we STILL couldn't get an appointment. The air turned blue. Fortunately a fellow passenger felt so bad for my pregnant wife when he heard her tale of woe that he completely unprompted gave up his slot and let her have it. Great guy ^^^