Polymorph spells and "you're not the boss of me"

[Buri]

In the CRB under polymorph:

Quote:

You can only be affected by one polymorph spell at a time. If a new polymorph spell is cast on you (or you activate a polymorph effect, such as wild shape), you can decide whether or not to allow it to affect you, taking the place of the old spell.

So, if I have a polymorph spell (presumably a good one) cast on me and someone comes along and puts another on me (presumably a bad one) such as baleful polymorph, even if I fail my save, can I just say no?

[Isil-zha]

I'd assume it was only meant for harmless spells, but as the wording stands it includes all spells of the subschool (note that most of the xx form/shape spells don't allow a save to begin with and at my table I'd houserule that it only works for these)

[mplindustries]

Yes, you can decide to accept it or not. It's not a bad idea to have a low level polymorph spell on you when facing spellcasters.

[meowstef]

from baleful polymorph

Quote:

Any polymorph effects on the target are automatically dispelled when a target fails to resist the effects of baleful polymorph, and as long as baleful polymorph remains in effect, the target cannot use other polymorph spells or effects to assume a new form

so while you can only have one such spell running and normally get to choose which one baleful polymorph removes that choice from you

[Xaratherus]

From the Baleful Polymorph spell description:

"Any polymorph effects on the target are automatically dispelled when a target fails to resist the effects of baleful polymorph, and as long as baleful polymorph remains in effect, the target cannot use other polymorph spells or effects to assume a new form."

The moment you fail your save check(s) against the spell, all other polymorph effects currently on you disappear; therefore no, you would not have a choice at that point.

<edit>
Beaten to the punch. ;)

Note that since Baleful Polymorph specifies this "polymorph wipe", I would rule that any other polymorph spell lacking that descriptive text WOULD offer you a choice, even if you failed your save against it.