entity* temppointer;

function blabla()
{
   var savepointer;
   savepointer = you;
   you = null;
   while(1)
   {
      temppointer = savepointer;
      if(temppointer == NULL) {return(-1);}
      wait(1);
   }
}

/************************************
	ef_h
		validated get entity by handle
*************************************/
ENTITY* eh1; // entity for ptr_for_handle validation
function ef_h(_handle) {
	eh1 = NULL;
	if (_handle == 0) {
		return(0);
	} 
	eh1 = ptr_for_handle(_handle);
	if (eh1 == NULL) {
		return(0);
	}
	return(handle(eh1));
} 
define _eTarget, skill22;
//...
my._eTarget = handle(you);
//...later
// ...meanwhile back at the ranch
ef_h(my._eTarget);
if (eh1 != NULL) {
	// go home
}
//...