Re the bold part: https://www.google.co.uk/search?sourceid=chrome-psyapi2&ion=1&espv=2&ie=UTF-8&q=lithium%20ion%20battery%20explosion&oq=lithium%20ion%20&aqs=chrome.4.0j69i57j0l4.4429j0j8
There's been some pretty high profile cases of phone batteries exploding in peoples pockets (particularly Samsung ones for some reason).
Joking aside (and please don't mistake some light-hearted ribbing for piss taking) the actual risk associated with charging LiPo batteries comes (primarily) from one of two sources - cheap chargers that aren't properly regulated and damaged batteries. In fact you have a higher risk of ignition by not storing your batteries correctly (you should really keep them in a stiff sided box or fire proof bag to prevent accidental puncture and contain the burn in the event of damage). Using a decent charger (Imax B6, Turnigy etc) will help to reduce the risk associated with charging and making sure you correctly manage the cycling of the batteries (don't deep discharge them, don't over charge them etc) will also help.
At the end of the day though you must do what you feel safest with and if that involves kitchen implements then so be it.