nothing sad about having a huge grin on a trackday. The sad ones are the ones who dont enjoy it like that imho.
First TD i did was Brands last year. From the morning when i woke, the whole ride there and the first couple sessions it rained. And rained a lot.
So my first few laps out i took it really, really easy and basically acted out a little fantasy..... I'd just wont the GP title and was riding about waving to the imaginery crowds who were all in awe of me. A couple of guys who overtook me looked at me well funny as i rode around waving at the scenery but who cares, i didn't know any of them and would never see any of them again