Yes im afraid we have all been there,in my case it was with two baby greys & the pair of them would head for the highest point in the room knowing fall well i was unable to reach them.I would always save their favourite treat, which happens to be pine nuts, for the purpose of getting them in their cage.
If you can get Sammie to step up a tip i learned very early on was to gently grasp your thumb over the foot,it doesnt hurt none,but prevents them from taking off again,the worse sammie will do is have a flap