It'd be like some alien grass wouldn't it?

[ This sounds like more work than he bargained for. He just wanted to play some kickball, and considering he's a werewolf who heals quickly? Well, he's not all that worried about playing it in slightly unsafe areas. ]

Wouldn't want to infect the fleet with alien bugs or something. But astroturf wouldn't be that bad. I guess other people would use it, too.