Kerry Katona has called out people online for "spreading negativity" after she was caught short on the motorway.The mum-of-five needed to urinate on the side of the road after getting stuck in a traffic jam on the M56.The 43-year-old had been on her way to perform as the Wicked Queen in a pantomime show in Ellesmere Port when she was stuck on the carriageway for two hours. After posting a video of herself using the road as a loo on Instagram, the former Atomic Kitten star prompted some criticism.