Ah, yes, Mr. Bloggs,
Many years ago - British airline B747-200 westbound ex HK.
Over RTOW with FP fuel.
Captain instructs removal of freight down to RTOW.
Ground staff remove ULD weighing rather more than excess.
"Ahaa!" says captain, "You can now board some staff."
"No!" says dispatcher, "Cannot offload freight to load staff."
"So we depart under RTOW?"
"Yes!"
Report filed and Mgr HK advised of his error of understanding of the rules
Not to new boys: RTOW = RTOM (RTOW Mars)