quote from ScottyDoo
..."Of course they do, it's your job to clean them up, not ours!!! What did you expect???????? 
Maybe if you learned not to call them "tech crew", you might find some consideration coming your way!!"
Actually Scotty, at my airline it's not my job to clean up other crew's rubbish however I do - and do it without complaining. I was merely having a light hearted joke with sebby. We actually have a great working relationship between crew, and a high level of respect between cabin and technical crew.
And FYI, in this country, the terms "Pilot", "tech crew" and "flight crew" are all used interchangeably and are all a respectful term of reference. Our pilots even refer to themselves as "techies".