Bad luck

Are you afraid of black cats? It is ridiculous. Really bad luck is when an angry grizly is tearing your tent.
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- Honey, I lost two pounds.
- Do not forget to wash away.
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Russian roulette for sysadmins.
Use blonde instead of bullets: put her to your terminal with full access rights to the system.

Behind the limits

If blonde saw a diamond ring and exclaimed: "Oh, this is the limit of my dreams!", Do not rush to buy it, since then "behind the limits" begins.
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In the absence of clothing a blondes absence of mind is not so noticeable.
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Animal trainer's wife after sex gets snack.