Overview:The Holby staff become increasingly concerned about David's manic behaviour when he impulsively buys a fancy car on the way to work, and behaves inappropriately at the pub. Concerned for his safety, a heavily pregnant Robyn takes it upon herself to intervene, but ends up placing herself in jeopardy in the process. Meanwhile, back at the ED, a man with potentially fatal burns is admitted after rescuing a fellow driver from her crashed car, and the gang prepares to throw a 60th birthday party for Duffy - even though she's actually 56