‘We have a new friend’: Teenager’s tweet from a night out goes viral after she poses for a bathroom selfie with a delighted elderly woman br Mahri Smith from Ottawa tweeted selfies with her friends and an elderly woman br The 18-year-old said they'd made 'a new friend' on their night out br Her post has already been retweeted 73,000 times in just 48 hours br br br Read more: br Follow us: @MailOnline on Twitter | DailyMail on Facebook