What Schrödinger’s cat REALLY means

A cat is alive in a box. A Geiger counter observes (better to say detects) a particle. The detection causes wave function to collapse. The cat is dead.
Who needs scientist to open the box to make an observation. It has already been done  by the Geiger counter. There never was a superposition of the cat itself. 
The detection breaks a vial with poison. No particle detection - the cat is alive. No observer (i.e. a Geiger counter) the cat is definitely alive.
But observer is a Geiger counter, not a scientist.
Where is a paradox?