magic the gathering rules: shroud vs own abilites

[mtgnewbie]

can a creature with shroud use targetting ability on itself?

for example if Armored Guardian gave itself shroud, can it use its other ability to give itself protection from a color?

[Arix]

No. When it says it can't be the target of spells or abilities, it means it can't be the target of any spells or abilities.

[riolu]

i think a creature should be able to use an ability on itself even if it has protection or shroud because it doesnt make sense that it cant use ability on himself

[Arix]

And it doesn't make sense that a Headless Horseman can wear a Helm of Kaldra, or that you can cast Remove Soul against a Soulless One. But here we are.