An Excess of Phlegm

One morning, as they were lounging around on the patio, two handsome tawny owls landed in front of them.
'These are school owls,' Cas said, his eyes widening. 'These must be our exam results.'
Both the owls lifted their legs, and Cas and Dean took the letters from them.
'Accio glasses,' said Dean, Summoning the glasses Cas had charmed for him. 'Okay, you first,' he said eagerly.
Cas opened his envelope and unfolded the parchment.