If you are over a base in a massive furball and you want the buffs to stay away let them know. 
Question... for a MEEELLLEEEEUUUUN DOLLLLERSSS!!!
How often... do they listen?  How often......... do....... they listen?  (queue clock ticking sounds).
Eh, eh, oh man... I... can I poll the audience!?!?!  
Lifeline!  (queue poll audience music, queue clock ticking sounds)
Ok.  Here... are the results.  (queue poll results music) 3% say "All the time." 4% say "what is a buff?" 2% say "MISHUN!" and... 91%... 91% say "Are you kidding me?  LOL, n3vAr!!!11"