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If you use an item with limited uses in a shop before paying for it and in the presence of a shopkeeper, you will be charged a usage fee[1]. This includes items with charges, spellbooks and non-permanent light sources.
Messages associated with usage fees[]
- "This is no free library, cad!" - spellbooks
- "That will cost you (n) zorkmids (Yendorian Fuel Tax)." - potions of oil
- "Usage fee, (n) zorkmids."; - anything else
Each of these messages has a one-in-three chance of being prefaced with "Hey!" or "Ahem."
Fees[]
Usages fees are a percentage (rounded down) of the item's normal cost:
Item class | Usage Fee | Notes |
---|---|---|
Magic lamp | See below | See below |
Magic marker | 50% | No matter how many charges are used, or even if the use was successful |
Bag of tricks Horn of plenty |
20% | |
Can of grease Tinning kit Expensive camera |
10% | |
All other chargeable tools Wands |
25% | Only if the item had any charges |
Spellbook | 80% | |
Potion of oil | 20% |
The usage fee of a magic lamp depends on how it is used:
- 'a'pplying it will be charged as if it had the price of an oil lamp
- #rubbing it will, if a djinni is released, have a usage fee of 133%
Strategy[]
In general, it is preferable to buy the item first (credit_cloning), or even buy&use&sell it. One exception are low-level spellbooks: By the time the spell expires, your character is most likely either dead or stinking rich.
References[]
- ↑ shk.c, line 3922 usage fee