MANCHESTER, UNITED KINGDOM — Passengers onboard a flight from Manchester to Pakistan were left feeling down in the dumps when a woman mistakenly opened the plane's emergency exit thinking it was the can, causing a seven-hour flight delay.<br /><br />The plane was on the runway when the female passenger elected to use the toilet despite the seatbelt signs being lit. <br /><br />It's unclear how the woman was able to open the emergency exit without being stopped by the cabin crew. As a result, the plane's emergency slides deployed. <br /><br />According to The Express Tribune, Pakistan officials blame a lack of airline staff for the incident. <br /><br />The Guardian reported that when the woman was questioned on why she opened the emergency door, she said that she thought it was the toilet. <br /><br />A spokesperson for Pakistan International Airlines, also known as PIA, told The Express Tribune that, "there was no threat of any kind." <br /><br />PIA followed protocol and offloaded disgruntled passengers with some taking to Twitter to express their dissatisfaction.<br /><br />The Sun reported that the flight was pushed back from its scheduled departure of 9:20 p.m on Friday to 5 a.m on Saturday.