feeding time

my boys are starting to really p*#s me off with meal times as they have started to delibrately(sp?) throw their food on the floor - esp keegs whos my skinny boy and i want to get food into him. they are normally good eaters jaidyn more so but i find it extremely frustrating cooking them a nice meal to see most of it chucked on the floor then having to clean that up. my friend said to ignore them when they do it but i am now thinking that its naughty behaviour that needs to be dealt with - just not sure how or if time out is the answer and if so whether to go back to the remains of their meal after.
any ideas please

the funny thing about the little toads is that they eat fine at other places
its seem that with keegs hes thrwing food hes not keen on - jaidyn is willing to try anything and usually likes it whereas keegs is fussier and by the time hes got to the throwing stage hes prob had 5min of just moving the food round the plate. i have tried the "just 2 more mouthfuls" thing but doesnt seem to work too well unless i bribe him with something cool he wants to do. Even then its hit and miss if the bribe will work.
Anyway will give your ideas a try Janine and heres hoping. Its just so frustrating as Keegs used to be such a great eater...oh well

Oh my! I thought one was bad enough!