[@SomeChap] Speaking of sucking things into the warp, the last psyker I touched was out of Black Crusade. Aaaaand he took a 30m sphere of the spaceship he was on into the warp with him. Needless to say, he didn't survive. 

To be fair, it was an Alpha Legionnaire that randomed Warpsmith mutation, and had the worst perils rolls I have ever seen.

I promise a dedicated psyker will go better. Probably. Maybe. If the Empra wills it.