Boo, hiss. A homeowner was terrified to discover nearly 100 venomous snakes in a writhing black knot in his backyard — in a case experts have described as a “rare occurrence.” The trouble began last week when David Stein initially spotted a handful of the slithering creatures clustered together in his garden — leading the Australia man to immediately call in a specialized removal crew.

A man described feeling “the shudders” as more than 100 venomous red-bellied black snakes were removed from a pile of mulch in his Sydney backyard. David Stein called Reptile Relocation Sydney last week after watching around six snakes slither into the mulch.

A homeowner in Australia received quite the horrific shock when he called reptile experts after spotting a few snakes in his backyard. However, a search of the property turned up over 100 of the slithery creatures,