Person A and Person B live on a farm with lots of fences, muddy verges and machinery/equipment.
Person A and B went out for food with friends one night. On return to the house, Person A notices the fence leading to the house is partly knocked down and the long panels are snapped. It's rare other people venture up the to the farm but there was a delivery earlier that day. Person A comments 'the fence is all knocked down, someone must have reversed into it. Maybe the delivery driver'. Person B replies 'the fence posts could have rotted out. I can't see any tracks to the fence so doubt it has been reversed into'. It was dark and nothing else was said.
This morning, Person A looks at the fence again and says 'there are track marks to it actually and it's only snapped fully in one place'. Person A then notices and picks up a magnetic trailer light from the wood debris and says to Person B 'this is off the trailer you have been towing'. Person B replies 'I do not know why that is there'. Person A says 'well it's obvious why it is there. It was you who reversed into the fence and smashed it up and have since covered it up. I thought your response yesterday was odd, immediately saying you didn't think it had been reversed into'. Person B says 'it does look like I did it but I didn't have any knowledge of it and had no idea it happened as I didn't feel anything when pulling the trailer out the other day'. Person A believes Person B is lying, stating their 'odd responses' throughout the whole matter. Person B says they are categorically NOT lying and had no idea they had done it and thought rotted fence posts was more likely.
Would you believe Person B or go with Person A's theory that Person A has known they did it all along?