Not for 3.5 years. But oh, wait, I do recall how tieflings and their angelic counterparts have unique expressions; some have horns, some have hooves, some just have hot skin or hair that looks like flames... so a tail would not be out of order. That was the description I had access to, at least.
I should point out, then, that I didn't realize THIS tiefling had a tail. Wasn't in his write-ups. But I'll account for it now, no problem.
Any other surprises I ought to know about? Intensely sulfurous farts, perhaps?