Severus looks a bit hard-pressed not to laugh himself. "Oh, good. I'd hate to see what would happen if you used that fake hair muggles use sometimes. What happened after it came off?"
"Only when you haven't slept in a while, or randomly?"
"What?" he cries in outrage, louder than he ought. "But that's---that's so--no games with the numbers? No temptations into unwise bets? They just want to mug us?! After I already told them--we should turn them into penguins!!!"
Sev (who appears to be channelling Xel) is fairly oblivious in some ways, but Rus has been fairly overt about wanting Sev to enjoy himself. ;)