Imagine Teddy getting a howler from Tonks and he starts to freak out but when he opens it, it's like
TEDDY GUESS WHAT, THE WEIRD SISTERS ARE COMING TO TOWN. PACK YOUR THINGS, SON, I ALREADY TALKED TO MCGONAGALL AND SHE SAID IT'S COOL. MERLO N'S PANTS I'M SO EXCITED. DON'T TELL ANYONE OKAY, MAYBE YOU SHOULDN'T TELL DAD EITHER. OH CRAP IS THIS A HOWLER? I SCREWED UP. I SCREWED UP.
And Remus at the teachers table covering his face to hide his laughter:
