For some odd reason we use both, LT.
2.5in would be just over 6cm.
I can imagine trying to hug Dr. T would be akin to hugging a cactus, based on his people skills as you've portrayed them so far.
Seems as though people might want to spare themselves.
__________________
'Somewhere up above the great divide
Where the sky is wide, and the clouds are few
A man can see his way clear to the light
'You have all the grace you need for today, and today is all that matters.' - Steve Austin