Does your vampire worry about others witnessing them feeding?

My vampires are not all-powerful, but a rare few, non-organized individuals in a high technology world with a functioning law enforcement including paranormal departments in the larger cities. So naturally they have to be careful.

That said, simply being a vampire is not illegal, and the one time my police lieutenant went into thirst desperation at work and sampled a co-worker, all he got was impulse control counceling. Main character plot armor is a useful thing to have ;)