Thinking with stomach...
Teacher: What came after the stone age and the bronze age? 
 
Pupil: The sausage! 
 
Gravity :-)

HEHEHE&nbsp;<img alt="" src="/FCKeditor/editor/images/smiley/msn/teeth_smile.gif" /> 
CoOoOoOoL&nbsp;<img alt="" src="/FCKeditor/editor/images/smiley/msn/tounge_smile.gif" />

Pensando con el estomago 
 
Maestro:&nbsp;&nbsp;&nbsp; Que vino despu&eacute;s de la edad de piedra y la de bronce? 
Alumno:&nbsp;&nbsp;&nbsp;&nbsp; ... la salchicha!

Very good! &nbsp; &nbsp; &nbsp; ;) &nbsp;:) &nbsp;