Kevin Clifton from Strictly Come Dancing has issued a powerful warning to his social media followers.
The professional dancer, 36, uploaded a message to Instagram pointing out that typed words can change people's lives in either a "positive or negative" way.
It isn't clear whether or not Kevin wrote the words in the message, which read: "It's amazing to me that words typed out on a screen have the power to change someone's life, whether they be positive or negative.
"What are you putting out into the world? Is it positive or negative? Just something to think about."
In the comments, his followers rushed to agree with the message.
What are you putting out into the world? Is it positive or negative?
One said: "Think before you type. Too many don't, they think social media is their right to criticise, complain, harass and hurt."
Another wrote: "Everyone should be mindful of their words. Something that's funny to one person can be the final put-down to others. Be nice, it costs nothing but means everything."
A third commented: "Absolutely. People hide behind keyboards and fail to recognise the damage and impact they can have."
Kevin, who is partnered with former Treasure Hunt presenter Anneka Rice in the new series of the hit BBC One dancing competition, is set to feature in a Strictly special about the show's line-up of professional dancers.
The programme, which airs this Saturday (14.09.19) at 7pm on BBC One, will reportedly see Kevin claim that fellow dancer AJ Pritchard - brother of Love Island star Curtis Pritchard - once tried to steal his dancing partner.
According to The Sun, Kevin says: "Last year with Stacey in the salsa circle I was going for it — bang, bang, bang — overdoing it."
He is talking about the speed dance that the stars took part in, during which each celeb briefly dances with each pro before the pairs are decided.
Kevin continues: "And then at one point, we were on a coffee break and AJ interrupted us in the middle of us talking and took her away, because he wanted to get to know and see what she was about. I was like, 'It's not Love Island, mate!'"
As fans of the show know, Kevin was eventually paired with Stacey and the two went on to win the series.
The pair, who have since started dating, were reunited on the dancefloor during Strictly's pre-recorded opening night for a sizzling Paso Doble.
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