"Suffoco!" Slughorn wasn't quick enough to stop this hex, and fell to the ground, feeling as if he'd been kicked in the gut several times. At this time, two bar stools went hurtling his way. One did hit him square on the head, but he managed to aim his wand at the other and choke out, "Immobulus!"; thus, suspending the stool in midair.

Feeling the suffocation hex loosen a bit, he rose to his feet, and glanced around for his intended target. In the clamor and chaos of the pub, he was nowhere to be seen.