Henry speaks from experience.
While we were cleaning up after Parc Henry said "lets see if I can fit in a tetra" he also said "stack some tetras on top of me"
Well, once several tetras were on him he got his cell phone taken away, his arms sharpied and his hands got white lithium grease all over them, and he also got stuck inside the tetra stack for a long time screaming in pain.
Henry has much yet to LEARN, more so than Corey!