heres a funny story
at school i was filling my water bottle with water and i spotted something dirty, i saw small dots in the water and a pretty big stain, i emptied out the water and THE STAIN WAS A SPIDER.
yes, a whole f**king spider was in the water (its like 1 centimeter or 50÷127 inches and i didnt drink the dirty water) and i refilled it and there was no dirtiness.