What a vampire should avoid because it is dangerous or frightening?

A vampire should avoid sunlight, as it can cause severe burns or even death. Holy symbols, such as crosses or sacred water, are also dangerous, as they can repel or harm them. Additionally, entering a home without an invitation can provoke hostility from its inhabitants, making it a risky move. Finally, they should steer clear of garlic, which is traditionally believed to ward off vampires.