It's a fair question, given some of the metaphors Enjolras has come up with in flights of rhetoric.

However: "Not at all."

He knows how it sounds. All he can offer is his seriousness, and the evidence of Bossuet's senses.

Bossuet's... possibly somewhat concussed senses, considering that lump on his head and Enjolras's memory of the events of '30. Well, it can't be helped.