Tangerine returns messages several times

[geoapi]

Hi, I'm trying to detect a message with a specific keyword, and tried this example

`from tangerine import Tangerine
tangerine = Tangerine("xoxb-xx")
@tangerine.listen_for('m')
def getspa(user, message):
s = 'I see you like ' + message
print(message)
return s

@tangerine.listen_for('morning')
def morning(user, message):
return "mornin' @{user.username}"

if name == "main":
tangerine.run()
`
The problem is that, I received several repeated messages, so for example , I entered:
just the letter m I got:
I see you like m
I see you like I see you like m
I see you like I see you like I see you like m
and it goes on and on till I kill it.
am I doing something wrong?
Thanks