Sense of smell
What's everyone's opinion on what happened with Trusty at the end? Supposedly he lost his sense of smell, yet he managed to get to Tramp in time.
I figure there's a couple possibilities...
1) Jock was just mistaken. Trusty never lost his sense of smell.
2) Trusty's sense of smell waned in the years since his retirement, but when a situation arose where he was really needed, it kicked back in.
3) Trusty never got his sense of smell back, he just got lucky.
What do you think?