For crawling, that is.
The sprout has never shown an interest in crawling. Standing and cruising is far more interesting.
Hello angry crawl.
You. big. meanie. You. have. put. me. on. my. ass. in. the. middle. of. the. floor. Well. screw. you. I. want. to. cruise.
So far he's only figured out how to crawl to the couch to pull himself up to stand. He hasn't figured out that cruising is a mode of transport. I haven't enlightened him to this fact.
He doesn't need to know, does he?