He tenses at the touch for a moment, forces himself to relax and calm the way his stomach is clenching.

"Yeah, well, impossible odds are kind of my thing. I should be good at it by now. It's just like a Thursday, right? Never could get the hang of Thursdays."

Although he's made that joke once already today, hasn't he? Off his game. This is no good. Pushing back away from the tree John presses his lips together unhappily, skips his eyes around the area as he tries to work out how to gently redirect. His eyes drop to where Ianto's hand has moved up to his arm and John fumbles for something to say, for some reassuring witticism, but the words all die before they even begin and he's just left regarding Ianto warily from behind his sunglasses.