A Tesla owner posted on a forum to warn others about closing the door.picture alliance/GettyA Tesla owner posted on a Cybertruck forum warning others to be careful closing the door.The owner posted a photo of a cut on his leg that he said he got closing the door on an incline.Tesla warns Cybertruck owners to "use caution around the panel edges" of the angular design.A Tesla owner said he needed stitches after he wound up with a gash on his leg from exiting his Cybertruck on an incline."Be careful when closing your cybertruck door!" the owner said in a post on the Cybertruck Owners Club forum.