how to price a self-Affliction disadvantage?

[deathbyflossing]

So let's say I want a character who suffers an affliction upon contact with something. this isn't Revulsion, because that gives a static penalty, and this could be anything from the Affliction list.
For example, a vampire who suffers Agony when he touches a cross doesn't have Revulsion, because that causes a static penalty, and this vampire specifically suffers the Agony affliction. Likewise, in the Ramayana when Ravana the demon king kidnaps the maiden Sita, he has to do it by ripping up and carrying away the ground she's standing on, because if he touches a woman without her consent, he'll drop dead that instant. This would be Heart Attack Affliction upon contact with Unconsenting Women.
Theoretically, since both of these Disadvantages would have the same mechanical structure [affliction x upon contact with y], it should be possible to price a disadvantage for this. But I cannot for the life of me figure out how. could someone give me some guidelines or ideas on how to do this? please bear in mind I am very much a n00b at GURPS.

[Dragondog]

The effect Revulsion has when you touch your kryptonite, is +150% for Affliction. So a simple sollution would be to set a self-affliction disadvantage with 150% effects, such as Paralysis or Sleep, to the same cost as Revulsion.

And for effects with other percentages:
50% effects are +10 points
100% effects are +5 points
200% effects are -5 points
300% effects are -15 points

But this is only for the touch level problem. You could leave it at that or make a small adjustment because there is no additional problem for ingestion.

[Bruno]

Touch vs Ingestion: I'm pretty sure you have to touch something to ingest it, so that shouldn't be a big problem. I would generally recommend vampires to not swallow crucifixes.

Chronic Pain also applies an Affliction to you, although rather more randomly. It's a better basis for when you need to apply random Coughing And Sneezing for e.g. seasonal allergies or Victorian Novel Disease.

Like Revulsion, you can scale it the same way.

[Flyndaran]

Love how Gurps was mentioned in that trope article.

[Bruno]

Originally Posted by Flyndaran

Love how Gurps was mentioned in that trope article.

GURPS totally has everything :)

[deathbyflossing]

Dragondog: The effect Revulsion has when you touch your kryptonite, is +150% for Affliction. So a simple sollution would be to set a self-affliction disadvantage with 150% effects, such as Paralysis or Sleep, to the same cost as Revulsion.

And for effects with other percentages:
50% effects are +10 points
100% effects are +5 points
200% effects are -5 points
300% effects are -15 points

Bruno: Chronic Pain also applies an Affliction to you, although rather more randomly. It's a better basis for when you need to apply random Coughing And Sneezing for e.g. seasonal allergies or Victorian Novel Disease.

Like Revulsion, you can scale it the same way.
Today 10:49 AM

These are exactly what I needed, thanks!