Runner Deception??

[emaxos]

I think I know how this will go but have to ask anyway.
R1 on first, 0 out.
BR pops up in infield, between 1st and pitcher's circle, infielders converge. R1, three or four strides toward 2nd, joins the chorus yelling, "I got it".
Pitcher, 2nd base get confused and ball drops in. Both runners safe. Fielders admitted afterwards, runner screaming fooled them.
I've seen mention on here rules about intentionally attempting to deceive. Any possibility that the runner's actions were illegal?
Neither runner scored and we won 11-3 so only impact was fielder's looking stupid.