By Danielle Kate Wroe Getting a Greggs when you’re out and about feels like a real treat, but there’s nothing worse than ordering a sausage roll and realising it’s cold. Admittedly, they do taste delicious no matter what the temperature, but nothing beats eating buttery, flaky pastry, with the sausage piping hot inside. One Greggs staff member has spilt plenty of secrets about the bakery, including when to head over if you’re looking for a hot sausage roll, and things customers do that are seriously irritating. Taking to Reddit, they posted: “I work at Greggs, ask me anything”, and people took…