It's annoying when a phone goes off in a movie or in a meeting. If you struggle to remember to turn your phone off at the appropriate times, Redditor Asmailes has a clever solution: make your ringtone sound like a cough.
As a college student and waiter who forgets to silence his phone, this has saved me from death glares from professors and customers when my phone goes off. Works great for movie theatres and office meetings. While yes, people will notice the sound, they will not necessarily know what it was or where it came from.
You're not limited to coughs. Asmailes also suggests sneezes, farts (because that's not embarrassing at all), a coin dropping and clearing your throat. The list is expanding over on the Reddit thread, so check it out for more options. If you're not sure how to make a custom ringtone for your phone, read this.