In the same article he also argued that large eurozone liabilities and the highly leveraged way that the Bank lends puts it at risk of a banking crisis. On 9 July 2019, Rowland's Twitter activities received national attention when he tweeted at David Lammy, MP: "Lammy, you’re first port of call should be the Chicago School of Economics. Complete 3 years and then you might understand 10% of what we all understand. Ignorance and race baiting is your signature tune." Twitter users said that the Chicago School of Economics is not an actual university, but a school of thought; and that American degrees would in any case require 4 years, not 3. David Lammy also said that he had, in fact, attended Harvard University. The following day, on 10 July 2019, Rowland tweeted: "We are behind all our fisherman and the restoration of sovereignty over our waters. 200 miles of exclusion zone with any foreign fishing vessel given the same treatment as the Belgrano! Well done June. We are 110% behind you and will ensure you give ‘em hell on committee." His threat to sink foreign civilian fishing vessels was widely shared and criticised on social media. Rowland is married with three sons and one daughter.