You could do this with no VBA at all. Try this:
1. Create a new blank document.
2. Display the Forms toolbar (View, Toolbars, Forms).
3. Insert a DropDown form field, then double-click it to get to the
Drop Down Form Field Options dialog.
4. Add these entries to the dropdown: FooOne, FooTwo, FooThree.
5. In the Bookmark field, enter the name "ddFoo" (without the quotes)
6. Check the Calculate on Exit box.
7. Close the Drop Down Form Field Options dialog.
8. Hit the space bar a couple of times, and insert a text form field.
Its purpose is simply to give the user somewhere to tab to in order to
trigger the "Calculate on Exit".
9. Create three autotext entries named FooOne, FooTwo, and FooThree.
The names must match the values you entered in the Drop Down Form Field
earlier. The autotext *contents* would be whatever text you want to use
for the disclaimers.
10. Hit Enter a few times, then press Ctrl+F9 to insert an empty pair
of field markers. Inside the braces, type:
{ AUTOTEXT ddFoo \* MERGEFORMAT }
Note: do *not* type the braces shown here -- they are supplied by the
Ctrl+F9.
11. Inside the field braces, select the "ddFoo" characters with your
mouse. Press Ctrl+F9. This will surround ddFoo with another pair of
field braces. It should now look like this:
{ AUTOTEXT { ddFoo } \* MERGEFORMAT }
12. Click on the word AUTOTEXT inside the field braces, then press F9.
13. On the Forms toolbar, click the Padlock button to protect the form.
Choose an item from the dropdown. Press tab to move to the text box
(thereby activating the Calculate on Exit option you chose earlier).
14. Voila! The corresponding AutoText entry will appear in your
document. Play around and choose different drop-down choices. The
document updates automatically.
Note: if you do not tab out of the drop-down, you'll have to unprotect
the form, then click on your AutoText field (the thing you built in
steps 10 & 11), then press F9 to calculate it manually.