This Morning's Phillip Schofield and Rochelle Humes came under fire from some viewers over their reaction to a caller's phone-in on today's show.
The presenters were fronting Monday's edition of ITV's flagship daytime programme while Holly Willoughby takes two weeks away to film a new show.
Phil and Rochelle were joined by The Speakmans on the latest edition to take calls from viewers looking for advice on how to tackle their phobias.
READ MORE: ITV This Morning's Rochelle Humes issues update after replacing Holly Willoughby
Viewers on Twitter said the show took a "strange turn" as a fan named Michelle opened up on her fear of custard.
Michelle admitted she is unable to say the word and was heard loudly wretching on the phone every time "custard" was mentioned.
She said: "I call it the yellow stuff you put on apple pie."
Eva Speakman explained the root of the phobia lies in her childhood and Michelle said she was forced to eat it when she was younger.
She added: "It wasn't the best of the stuff when I was younger. It was lumpy."
The Speakmans tried to guide Michelle through her fear by claiming the blame should be placed on the person who forced her to have the custard.
The caller said she would be thrilled if their advice was enough to overcome the phobia.
She added: "I promise you, if you can get me over this fear I'll have a bath in it for charity."
Phil and Rochelle couldn't hold back their laughter throughout the segment and viewers on Twitter blasted the pair for being "unprofessional".
Ellena said: "Think its rude how Phillip and Rochelle were laughing at the lady on the phone who says she is scared of Custard . To them its a joke but it isn't #ThisMorning"
@MetroDMH added: "Yet again Phil showing his total unprofessionalism by laughing at a caller. Albeit her problems are unusual. Are you having these phone-ins to genuinely help people or to mock them?"
Laura tweeted: "Sorry but I think @Schofe & @RochelleHumes are so unprofessional laughing like that at someone’s phobia!!"
Meg posted : "If this lady is genuinely terrified of custard is everyone laughing at her a good thing ?"
However, other fans following the show were similarly left in hysterics after the segment.
Maya said: "I'm an empath, but this custard phobia chat is really cracking me up!"
Chelsea posted: "Custard lady was hilarious"
Steve commented : "This is the greatest interview I’ve ever heard. Every time they said “ custard” she started heaving"
Natassja tweeted: "Howling at this woman scared of custard"
This Morning airs weekdays at 10am on ITV and ITV Hub
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