It's one of the last steps passengers need to get through before being able to leave the airport after a flight - the baggage claim. And it's the location for one of the most annoying habits - crowding around the luggage carousel. Now a single photo taken at Melbourne airport by an Aussie traveller this week has sparked a heated debate about travel etiquette.

"I returned to Melbourne last night on an international full flight, and the lack of self-awareness from some people was astounding," the post started. READ MORE: The outfits that could have you kicked off a flight "Despite the clear signs instructing passengers to stay behind the yellow line at baggage collection, many ignored them, standing right in front of it," she continued. "As someone who is on the shorter side, I already struggle to see over a 6ft grown man.

After taking this photo, two more people stood directly in front of me. "At that point, I firmly said in a loud voice, 'Stand behind the yellow line; it's there for a reason'. Thankfully, they moved.

" "Seriously, what is wrong with people? There's plenty of space around – why stand right in front of me? Rude AF!" READ MORE: Where to stay in Sydney for an affordable family city break The post quickly received hundreds of comments, with plenty of people equally baffled by the act. "Those two are probably the first to stand up and get their carry-on bags out of the overhead compartments as soon as the wheels touch down," one person comment. "You really trigger.