Serendipity

What I thought was happening was that whoever was buying tickets, would buy one 'for' Henry, and I'd get my nice free carer's ticket, and then Emma would take the 'paid' ticket and sit with you guys, and Henry would push me in my wheelchair and sit with me. But he'd pay for his ticket and Emma wouldn't pay for hers......they'd just swap seats. D'you see? So that Emma can come and not have to worry about the cost.