Note two things:
1. Dad had been at a beer festival the day before and was drinking from midday til about 9ish, when he went for a curry.
2. He hates heights.
He did well despite the panic attack he had in the night (although that might be from too many Thai Me Ups at the fest).
Mum and I are very proud of him. I will get mum to upload the video just to prove it.