What? Laying eggs or mating?

[ But really, either way Bruce is amused. LIKE SPROUTING OUT OF THE GROUND IS NORMAL, THEY'RE NOT PLANTS. ]

The lab is safe, don't worry. Tony's more prone to scientific adventures but I know better than to let him go too wild while on board. [ He very much likes not floating in outer space, and that kind of involves ensuring there won't be any risk to the ship's integrity. Which of course translates into keeping Tony in check. ]