Knights & Knaves Alehouse

Anyone care to take a stab at this (or have we made a list with the corresponding surprises?) There's normal surprise (2-6) a thief (MS and not, but attempting), elves, halflings, silence spell, boots of elven kind, ring of invisibility, etc. Then there are certain monsters from the MM that have improved surprise chances (like bugbears). If you care to take a stab please do.

Creature (f rom MM and DMG) Spec ial Attacks Spec. Defenses
Aerial Servant Surprises on 1-4 -
Ape, Carnivious - Surprised only on a 1
Brownie - Never Surprised
Bugbear Surprises on 1-3 -
Devil, Barbed - Never Surprised
Elf Surprises on a 1-4* -
Ettin - Surprised only on a 1
Frog, Giant and Killer Surprises on a 1-4 -
Gelatinous Cube Surprises on a 1-3 -
Giant, Cloud - Surprised only on a 1
Halfling Surprises on a 1-4*
Hell Hound Surprises on a 1-4 Surprised only on a 1
Invisible Stalker Surprises on a 1-5 -
Jaguar - Surprised only on a 1
Leopard Surprises on a 1-3 Surprised only on a 1
Leprechaun - Never surprised
Lion, All - Surprised only on a 1
Lizard, Minotaur Surprises on a 1-4 -
Lurker Above Surprises on a 1-4 -
Lycanthropy, Werewolf Surprises on a 1-3 -
Lycanthropy, Were-rat Surprises on a 1-4 -
Lynx, Giant Surprises on a 1-5 -
Minotaur - Surprised only on a 1
Neo-Otyugh - Never Surprised
Owl, Giant Surprises on a 1-5 -
Pike, Giant Surprises on a 1-4 -
Satyr - Surprised only on a 1
Spider, Huge Surprises on a 1-5 -
Tiger, All - Surprised only on a 1
Treant - Never Surprised
Troglodyte Surprises on a 1-4 -
Troll - Surprised only on a 1
Turtle, Snapping Surprises on a 1-4 -
Unicorn Surprises on a 1-5 -
Xorn Surprises on a 1-5 -
Character (f rom PHB)
Elf Special (PHB, p. 16) -
Halfling Special (PHB, p. 17) -
Monk - Special (PHB, p. 30)
Ranger Surprises on a 1-3 Surprised only on a 1

Excellent. Did you make that list thirsty?

I thought from the subject title you had found some hidden rule everyone had overlooked!