Oral streptococci have both harmless and harmful bacteria. Secondary headaches can be harmless or dangerous. However, there were also people who did not deem cannabis as harmless. Most lizard species are harmless to humans. This scorpion species is small and completely harmless to humans. It is slightly venomous, but relatively harmless to human beings; it is nocturnal. She considered writing to be a comparatively harmless pastime. Semen is in itself generally harmless on the skin or if swallowed. Gatros are omnivorous and completely harmless. Its infection is relatively harmless and clinically asymptomatic. Most are bacteriophages, which are harmless to plants and animals. Internal parasites are few and largely harmless. He occasionally offers advice, and harmless banter. This time they portrayed sinister spies posing as harmless elderly tourists. Calcium chloride is relatively harmless to plants and soil.