His roommate, Brimmer, was back before Henkel was ready to depart.
"You'd better wait, now, until the coast is clear," whispered Brimmer.

"Hosts of the fellows are hanging about outside." "They won't see me," jeered Henkel harshly.

"I'll wait until they're off at afternoon duties.

But see here, Brimmer, don't you dare forget that I might have said much about you, and that I didn't.

Don't dare forget that I leave to you the task of humbling that fellow, Darrin.