You would think this bandit had Foresight rather than Vertigo.
...
R>pun he
A human mugger stares off into the air looking a bit pale.
>
You make a precise attempt to punch a human mugger!
You have excellent positioning against a human mugger.
UAF: 429 vs UDF: 315 = 1.361 * MM: 125 + d100: 4 = 174
... and hit for 60 points of damage!
Teeth knocked out... through the back of the human mugger's head!

[You have 13 kills remaining.]
The human mugger falls to the ground and dies.
Roundtime: 4 sec.

...

Just cleaning up a spare bandit at the end of the task (or in would be punch head and no messing about) and the giantman is defiant to the last

It looks like multiples of Vertigo are treated separately rather than stacked. There's a message that looks like Vertigo wearing off, followed by a message that is a continuing effect of Vertigo. I am not sure if its WAD but it was a fun moment.

...

>pun l le
You make a precise attempt to punch a giantman highwayman!
You have excellent positioning against a giantman highwayman.
UAF: 429 vs UDF: 344 = 1.247 * MM: 131 + d100: 5 = 168
... and hit for 54 points of damage!
Blindingly fast hook smashes left knee beyond any hope of repair. If it's worth doing, it's worth over-doing!

Your yellow leather gloves flare with a burst of flame!

... 25 points of damage!
Flames burn neck into a bubbling mass of flesh. Forget lunch.
Roundtime: 4 sec.
R>'here's looking at you kid
A giantman highwayman looks a bit more in control.
>
You say, "Here's looking at you kid."
>

A giantman highwayman looks a little dubious about his situation!

A giantman highwayman removes a plain wooden arrow from in his quiver.
A giantman highwayman fires a plain wooden arrow at you!
AS: +282 vs DS: +392 with AvD: +28 + d100 roll: +17 = -65
A clean miss.
The wooden arrow breaks apart and crumbles away.
>pun r eye
You make a precise attempt to punch a giantman highwayman!
You have excellent positioning against a giantman highwayman.
UAF: 429 vs UDF: 310 = 1.383 * MM: 131 + d100: 57 = 238
... and hit for 78 points of damage!
Powerful descending side-hand strike drives both eyes deep into brain!
The giantman highwayman rolls over and dies.
Roundtime: 4 sec.