Scathing? Let's try silly, specious, for starters.

Yup, just like having someone buy milk and eggs for me.

Supreme Court rules against 'straw purchasers' of guns. (USA Today, 6/16/2014)

Scalia's dissent for the court's conservatives — not including Justice Anthony Kennedy, who provided the swing vote — was scathing.

[snip]

But Scalia ridiculed the majority's assertion that under federal firearms laws, the uncle -- not Abramski — was the true purchaser of the gun. "If I give my son $10 and tell him to pick up milk and eggs at the store, no English speaker would say that the store 'sells' the milk and eggs to me," he said.