Change one letter

[ohjay26]

Use any of these:

That would be a good DEED. But HEED this advice, FRED ought to FEEL his FEET to FEND off frostbite. A WEED can be used as insulation even after he PEED on his feet.

OK back to topic
How do you know he peed on his feet? Did you PEEK?

[Kouak]

I could tell by the smell. It REEKed. (But that is 6 letters so does not follow the rules.) I'll just say it was last WEEK.

[WiiDoit]

I could tell by the smell. It REEKed. (But that is 6 letters so does not follow the rules.) I'll just say it was last WEEK.

Maybe he couldn't help it 'cause he had a WEAK bladder.

[ohjay26]

Maybe he couldn't help it 'cause he had a WEAK bladder.

The plumbing in his house must have sprung a LEAK.

[ibrahim]

The plumbing in his house must have sprung a LEAK.

His house is built of TEAK wood.

[ohjay26]

His house is built of TEAK wood.

After he built his house he was too WEAK to enjoy it and took a swim instead.

[WiiDoit]

After he built his house he was too WEAK to enjoy it and took a swim instead.

Did he WEAR a suit or just skinny-dipped?

[Kouak]

No, the suit had a TEAR in it so he threw it out.

[ohioriver]

No, the suit had a TEAR in it so he threw it out.

Did the suit have a TEAL color to it?

[ohjay26]

Did the suit have a TEAL color to it?

I couldn't tell, he spilled food all over it when he had his MEAL.