article_snippet: Scroll down for video .
article_snippet: At first I thought he was joking
article_snippet: but he looked deadly serious.
article_snippet: and I’m going to sit here and make sure you do
article_snippet: ’ he kept watch as watch began the one-mile walk uphill to West Grantham Academy St John’s school.
article_snippet: Traumatic experience:
article_snippet: ‘When Dale came home and told me what had happened
article_snippet: I couldn’t believe it.