Almost one in 10 youngsters would immediately take to social media to tell their friends and followers if they saw a stranger in a risky situation, a poll suggests.
Nine percent of 18 to 24-year-olds would write a post on Facebook or Twitter or share a photo, the poll by Anthony Nolan found.
The poll comes after an epileptic woman spoke out about two strangers who refused to help her during a fit but were instead laughing and filming her on their mobile phones.
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A rollercoaster has come off the rails at a theme park in Scotland, leaving nine children and two adults in hospital.
"I saw a lot of smoke come out from the tail-end of the aircraft. I wondered if it was normal, whether it was just exhaust fumes."
The House of Commons Petitions Committee has said they will keep an eye on the petition and are concerned about fraudulent signatures.