As he'd come into the workshop, Tony's eyes had gone wide looking around at everything, it was even better than the little work space he had in his own home, which had been the best as far as he was concerned. But this - this was something else entirely. He was looking at everything and hadn't even noticed the man inside in his slow wanderings when he heard the slow greeting and he startled out of his goggling turning wide eyed at the person behind him.
Opening his mouth to respond he stopped almost immediately because there behind him was, "Dad!" He wasn't supposed to be here, he couldn't be here, he was ... well Tony didn't know where he was but he wasn't here. He'd been sure of that much at least.
He'd never have been able to have the party if his dad was really here but there he was and it was all falling apart and everything was wrong and he thought maybe he was going to panic over all of this because if his dad was here then things weren't going to be good. He wasn't supposed to be in dad's work shop. "I didn't mean - I mean... I wasn't going to," He faltered and started backing toward the door. "I'm sorry."
Of course as soon as he'd said it he thought maybe that wasn't right, this wasn't his dad he looked.... different. He was - well Tony didn't really know, just like everything else over the last few days it was confusing.