Narm: Mina screaming and fainting onto her bed after a cross burns her hand can come across as this.
What an Idiot: Van Helsing, Jonathan and Dr. Seward during the final confrontation; they already know they are dealing with a vampire, yet they don't bother to properly prepare themselves when confronting the count (like bringing stakes and garlic along) but instead try to fight him with their bare hands and whatever objects they find in his lair.
Justified, however. They were short on time, as they only had that night to find and kill Dracula. Had they taken the time to prepare properly, Mina would have been turned by Dracula.
...except that they had time to throw an elaborate party with a giant mirror to identify the vampire. They should have had the stuff together before he even ran.