The phrase "were you born/raised in a barn?" is a popular idiom used to chide someone for their lack of manners or tendency to leave doors open. If you're looking for similar phrases to use in place of this idiom, there are a few options that might work. You could say "were you born in a jungle?" to allude to someone being uncivilized or "were you raised by wolves?" to suggest that someone lacks basic social skills. Another option is "did you grow up in a zoo?" which can be used to highlight someone's unruliness or lack of decorum. Ultimately, there are a variety of phrases you can use to convey a similar meaning to "were you born/raised in a barn?" depending on the situation and your personal preference.