Poll
0%
5%
15%
15%
10%
20%
5%
0%
0%
30%
From Wikipedia:
Piranhas generally pose no threat to humans. Natives frequently swim in piranha-infested water without attacks or scratches. However, it is not recommended to swim where piranha live in drought season because of increased aggressiveness caused by food scarcity and increased tendency to form large schools. Piranha fish also have the same sensory system that enables sharks to detect blood in minuscule amounts, so it is believed that swimming with an open cut may enhance the chance of an attack, yet Piranha fish rarely try to eat animals much larger than them.
😐