Swimmers and cunning

Rats are very intelligent animals, capable of cranking out really clever adventure and get out alive from a seemingly hopeless situations. You probably have heard stories that rats can and climb into the house through the toilet, now it's time to find out how they do it and see for yourself how it actually happens. After viewing, you can no longer look at the toilet as ranshe.Kak rats do it:
A real example, shot in a building:


Source: 4tololo.ru/content/7392