At least she had a soft landing! Moment Starbucks barista topples over backwards as she throws sack of coffee over her shoulder

 A barista thought she was showing her colleagues how it was done when she hoisted a sack full of coffee over her shoulder.

It should have been all in a day's work for Chelsey Luker at a branch of Starbucks in Tucson, Arizona.

But gravity - and the weight of umpteen bags of ground coffee - had other ideasBut at least she had a soft landing, on top of the plastic sack.

The barista and her colleagues broke out in hoots of laughter at the gaffe, which was filmed by another employee and has since gone viral after being shared online on February 25.

Chelsey said: 'I threw a bag of espresso grounds over my shoulder and fell back and landed on it. 

'I made sure it was double-bagged with really strong bags and tied up tightly to make sure nothing came out of it.'

Chelsey got the back over her shoulder but it was way too heavy, before toppling down like a bowling pin

No harm done: Chelsey and her colleagues then broke out into hoots of laughter over the gaffeLuckily Chelsey, who is an enthusiastic mountain climber, was able to bounce right back up after her fall.

Footage of the video has been shared more than 1.7million times on Facebook, with more than 390,000 comments by amused viewers.

Addison Doyen posted: 'Absolutely love this and relate 100%!!'

Darien Theo added: 'Me any time I try to lift a heavy box.'

Lucy Thomson said: 'This is why I don’t take the bins out.